Contraception and Pregnancy Chances: Your Questions Answered - Obstetrics and Gynecology

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Understanding contraception and pregnancy chances is crucial for anyone who is sexually active and considering their reproductive options. Based on your questions, let's break down the scenarios and provide some clarity on the likelihood of pregnancy and the effectiveness of various contraceptive methods.

First, regarding your menstrual cycle: you mentioned that your last period started on March 5 and lasted for about five days. If we assume a typical 28-day cycle, ovulation would likely occur around March 19. Since sperm can live inside the female reproductive tract for up to five days, having intercourse on March 26 could potentially lead to pregnancy, but it would be less likely since it falls outside the typical ovulation window. The fact that you had your period from April 6 to April 11 suggests that you are not pregnant, especially since you took a pregnancy test on April 5, which returned negative.

Now, concerning your second question about the possibility of pregnancy after engaging in non-penetrative sexual activity (i.e., mutual masturbation), the risk of pregnancy is extremely low. Sperm must enter the vagina and travel through the cervix to fertilize an egg. In your case, since there was no vaginal penetration and your boyfriend ensured that there was no transfer of pre-ejaculate or ejaculate to your genital area, the chances of pregnancy are negligible.
You also mentioned that after the sexual activity, your boyfriend washed his hands with body wash and water before you washed your own private parts. While soap and water are effective at removing sperm, the key factor is whether any sperm was transferred to your vulva before washing. If there was no direct contact with ejaculate or pre-ejaculate, the likelihood of sperm remaining is very low.

To summarize, based on the information provided:
1. The likelihood of pregnancy from the intercourse on March 26 is low, especially since you had your period shortly after and tested negative for pregnancy.

2. The risk of pregnancy from mutual masturbation, as described, is extremely low, particularly if there was no direct transfer of sperm.

For future reference, if you are looking to avoid pregnancy, consider discussing reliable contraceptive methods with your healthcare provider. Options include hormonal birth control (like the pill, patch, or IUD), barrier methods (like condoms), or fertility awareness methods. Each method has its effectiveness rates and considerations, so it’s essential to choose one that aligns with your lifestyle and reproductive goals.

Lastly, if you have any concerns about your menstrual cycle, sexual health, or potential pregnancy, it’s always a good idea to consult with a healthcare professional who can provide personalized advice and support.