Calculating Conception Date Based on Due Date and Irregular Menstrual Cycle
Pregnancy date Hello, doctor. I would like to inquire about my pregnancy. My due date was December 31, 2021, but my baby was actually born on December 16, 2021, at 37 weeks and 6 days. Could you help me estimate the conception date? I'm not sure about the last day of my mens...
Dr. Zhang Kunmin Reply:
Hello, based on your description, if a pregnant woman has irregular menstrual cycles, the estimated due date and gestational weeks are often inaccurate. Consequently, the estimation of the conception date may also have a greater margin of error, which can lead to unnecessary conc...[Read More] Calculating Conception Date Based on Due Date and Irregular Menstrual Cycle
Understanding Conception Dates Based on Ultrasound and Menstrual Cycle
Possible date of conception Hello doctor, I would like to ask about the ultrasound examination. The first day of the last menstrual period was on January 15, and the estimated due date is October 22. The ultrasound on March 13 showed 8 weeks and 1 day with a crown-rump length (CR...
Dr. Zhang Kunmin Reply:
Hello, the error in calculating the gestational age based on the weeks of pregnancy can be significant. For individuals who engage in frequent sexual activity, it is not advisable to use this method for calculation, as it often leads to unnecessary disputes. Thank you! Wishing yo...[Read More] Understanding Conception Dates Based on Ultrasound and Menstrual Cycle
Determining Conception Date Based on Ultrasound and Menstrual Cycle
Date of conception Doctor: My due date is June 5th. During an ultrasound examination on November 20th, I was 11 weeks and 6 days pregnant. The first day of my last menstrual period was August 20th. I had unprotected intercourse on September 3rd, 4th, and 5th, and another instance...
Dr. Cao Guotao Reply:
Hello, your due date is June 5th, which means conception likely occurred around September 12th. Wishing you good health![Read More] Determining Conception Date Based on Ultrasound and Menstrual Cycle
How to Accurately Determine Your Conception Date
To confirm the date of pregnancy? The last menstrual period was on July 13. An ultrasound on September 6 showed a gestational age of 7 weeks and 0 days, with a margin of ±12 days (due date April 25 of the following year). Another ultrasound indicated a gestational age of 7 weeks ...
Dr. Huang Zifei Reply:
Dear M, Basically, it is not possible to accurately predict which day of unprotected intercourse occurred within three consecutive days using ultrasound, unless it is more than a week apart, which would make it easier to determine. I apologize for not being able to answer your ...[Read More] How to Accurately Determine Your Conception Date
Amniocentesis and Induction: Key Considerations for High-Risk Pregnancy
Amniocentesis and induction of labor issues? 1: My friend discovered that she and her boyfriend are within the fifth degree of kinship only after they broke up. However, she is now pregnant, with a due date between December 25 and December 29. Since my friend has irregular menstr...
Dr. Cao Guotao Reply:
Hello, the gestational age is too advanced, and there may not be any options for intervention; we can only consider delivery. Wishing you good health.[Read More] Amniocentesis and Induction: Key Considerations for High-Risk Pregnancy
Determining Your Pregnancy Date: A Guide for Expecting Mothers
Pregnancy date To estimate the date of conception, we can consider the details provided. Your last menstrual period (LMP) started on February 10. Typically, ovulation occurs about 14 days after the start of the last menstrual period, which would be around February 24. You menti...
Dr. Huang Yuande Reply:
The gestational age shown by ultrasound is usually more accurate, so you can count back six weeks from May 7, which may indicate the date of conception.[Read More] Determining Your Pregnancy Date: A Guide for Expecting Mothers
Determining the Likely Conception Date: A Guide for Expecting Mothers
Urgent! I would like to know which day I might have conceived? On December 23, 2020, menstruation occurred. On January 11, 2021, I had sexual intercourse with a friend. For the rest of the time, I had sexual intercourse with my current boyfriend, starting from January 15, and we ...
Dr. Zhang Kunmin Reply:
Hello, based on your description, it is difficult to make an accurate assessment. If necessary, I recommend undergoing DNA testing. Thank you! Wishing you peace and health. Dr. Zhang[Read More] Determining the Likely Conception Date: A Guide for Expecting Mothers
Understanding Conception Timing: A Guide for Expecting Mothers
Time of conception Hello, Doctor. My menstrual cycle is irregular. The last time I had my period was on June 25. I had sexual intercourse with my husband on August 18 and August 22. We did not use contraception on the 18th and did not fully use contraception on the 22nd, and ther...
Dr. Cai Yonglong Reply:
Irregular menstrual cycles are assessed based on ultrasound data. If September 28th corresponds to 6 weeks and 5 days of gestation, the estimated conception date would be around August 20th to August 26th, with some margin of error.[Read More] Understanding Conception Timing: A Guide for Expecting Mothers
Understanding Possible Conception Dates with Irregular Menstrual Cycles
Possible time of conception Hello, Doctor. I would like to ask you about my situation. I have been diagnosed with Polycystic Ovary Syndrome (PCOS) and have experienced irregular menstrual cycles for a long time. In 2020, I did not seek any medical intervention for the entire year...
Dr. Wu Xianghui Reply:
It is not possible to determine; please estimate the due date based on the embryo data from the vaginal ultrasound.[Read More] Understanding Possible Conception Dates with Irregular Menstrual Cycles
Understanding the Two-Week Discrepancy in Ultrasound and Due Date
The discrepancy between the estimated due date and the ultrasound is two weeks? Hello, Doctor. My last menstrual period started on April 25, and my average menstrual cycle is 29 days. Based on this calculation, by June 25, I should be around 8 weeks pregnant. However, my husband ...
Dr. Cao Guotao Reply:
Hello, to confirm a successful pregnancy, please continue to monitor and follow up with your obstetrician-gynecologist for check-ups. Wishing you good health.[Read More] Understanding the Two-Week Discrepancy in Ultrasound and Due Date
When Did I Conceive? Understanding Pregnancy Timing and Testing
When did conception occur? Hello Doctor, my menstrual period started normally on February 10, 2020. I had sexual intercourse with a male friend on February 21 and took emergency contraception. I experienced bleeding for three days starting February 28. A pregnancy test on March 1...
Dr. Cao Guotao Reply:
Hello, it should be that conception occurred at the end of March, not on February 21. Wishing you good health.[Read More] When Did I Conceive? Understanding Pregnancy Timing and Testing
When Did I Conceive? Understanding Your Fertility Timeline
What is the date of conception? Hello Doctor, my menstrual period started normally on February 10, 2020. I had sexual intercourse with a male friend on February 21 and took emergency contraception. I experienced bleeding for three days starting February 28. On March 13, I took a ...
Dr. Cao Guotao Reply:
Hello, it should not be the one on February 21, but rather conception likely occurred at the end of March. Wishing you good health.[Read More] When Did I Conceive? Understanding Your Fertility Timeline
Calculating Conception Date Based on Due Date: May 14th Insights
Calculating the date of conception? Hello, if the due date is May 14 of this year, the estimated conception date would be around August 21 of the previous year.
Dr. Huang Yiwen Reply:
Hello, Miss Xiao Xiao: If your menstrual cycle is regular and occurs once a month, then your estimated ovulation date would be around two to three days before or after August 21 of last year.[Read More] Calculating Conception Date Based on Due Date: May 14th Insights
Calculating Your Due Date: When Did You Conceive?
Pregnancy date Today, on April 14, I tested positive for pregnancy. I had an ultrasound at 5 weeks and 0 days, with a due date of December 15. Could you please clarify whether the conception date is March 10 or March 17?
Dr. Huang Yiwen Reply:
Hello, Dadai: The ultrasound report indicates that you are five weeks pregnant, which generally means that the calculation is based on the first day of your last menstrual period until the date of your ultrasound, approximately five weeks. In reality, you should subtract two week...[Read More] Calculating Your Due Date: When Did You Conceive?
Calculating Conception Dates: Understanding Your Fertility Timeline
Supplement 164393 I would like to ask the obstetrician if it is possible to estimate which sexual encounter led to conception, given that the estimated date of conception is around December 4th. I want to confirm if it was the sexual encounter on November 29th. During the prenata...
Dr. Cao Guotao Reply:
Hello, the two are too close to determine. Wishing you good health.[Read More] Calculating Conception Dates: Understanding Your Fertility Timeline
Calculating Conception Date Based on Due Date: A Guide for Parents
Calculating the conception date based on the due date? Hello Dr. Tsao, my second child is due on January 15, 2021. My wife and I had intercourse in early March, and when I calculate the date back from 40 weeks, it doesn't seem accurate. Am I overthinking this? Thank you.
Dr. Cao Guotao Reply:
Hello, this question may be more appropriate for your obstetrics and gynecology department. Wishing you good health.[Read More] Calculating Conception Date Based on Due Date: A Guide for Parents
Determining Paternity: Understanding Your Due Date and Conception Timeline
I want to know whose child it is. Please help me solve the mystery? Hello, I would like to ask about my current due date, which is on December 23. When would the conception date be? I remember my last menstrual period was on March 10, but I'm not sure if it was actually my p...
Dr. Wu Xianghui Reply:
1. For pregnancy concerns, please take a home pregnancy test or consult a gynecologist four weeks after sexual intercourse. 2. For paternity testing, you need to go to a paternity testing facility. 3. Based on your account, unless you have very irregular menstrual cycles, it is u...[Read More] Determining Paternity: Understanding Your Due Date and Conception Timeline
Determining the Likely Conception Date: A Guide for Expecting Mothers
I would like to know which day I conceived? Hello, my due date is on December 23. If I remember correctly, my last menstrual period was on March 10, but I'm not entirely sure (it usually comes on the 10th of every month). I had my last sexual encounter with my ex-boyfriend o...
Dr. Cao Guotao Reply:
Hello, it should not be your ex-boyfriend's. Wishing you good health.[Read More] Determining the Likely Conception Date: A Guide for Expecting Mothers
Understanding Ultrasound Due Dates and Pregnancy Weeks: Key Insights
Questions about ultrasound due dates and weeks of pregnancy? Hello Doctor: I had sexual intercourse with a female friend on May 16 of this year, during which she still had some menstrual blood. Her last menstrual period was around May 11. She had an ultrasound on July 8, which sh...
Dr. Wu Xianghui Reply:
Genetic testing is necessary for an accurate conclusion.[Read More] Understanding Ultrasound Due Dates and Pregnancy Weeks: Key Insights
Understanding Ultrasound Pregnancy Weeks and Due Date Calculation
Ultrasound Pregnancy Weeks and Estimated Due Date Hello Doctor: May I ask if the number of weeks and days shown on the ultrasound corresponds to the actual date of conception, and how is the due date calculated? Thank you, Doctor.
Dr. Cao Guotao Reply:
Hello, the estimation is based on the size of the fetus; it is not 100% accurate, just an approximate value. Wishing you good health.[Read More] Understanding Ultrasound Pregnancy Weeks and Due Date Calculation