Pregnancy Risks and Testing Options After Intercourse

Possibility of Infection and Pregnancy Testing Concerns

I had protected intercourse with my girlfriend on August 24.
During the process, she performed oral sex on me and then kissed me while I was performing oral sex on her.
What is the likelihood of contracting an STD? The next day, August 25, we had protected intercourse again.
After the first time, I removed the condom and washed with water in the bathroom without using any cleaning products.
During the second time, after the condom slipped out of her vagina, I touched the outer layer of the condom with the same hand I used to wash.
What is the likelihood of pregnancy?
Additionally, my girlfriend had just finished her menstrual period a few days ago and was using panty liners, but her cycle is irregular, ranging from 1 to 3 months.
If she wants to visit a gynecologist for a pregnancy test, how soon after the incident would be appropriate? Is it also reliable to use a home pregnancy test? Thank you for your guidance!

Mr. Lin, 10~19 year old female. Ask Date: 2018/08/26

Dr. Huang Jianzhong reply Obstetrics and Gynecology

On August 24, I had protected intercourse with my girlfriend.
During the process, she performed oral sex on me and then kissed me while I was performing oral sex on her.
What is the likelihood of pregnancy in this scenario? Answer: With protected intercourse followed by oral sex and then performing oral sex on her, the likelihood of pregnancy is low.
The next day, on August 25, we also had protected intercourse.
After the first session, I removed the condom and washed with water without using any cleaning products.
During the second session, after the condom slipped out of the vaginal opening, I touched the outer layer of the condom with the hand I used to wash.
We continued to have intercourse.
What is the likelihood of pregnancy in this case? Answer: With protected intercourse, removing the condom and washing with water, then putting it back on for a second session, the likelihood of pregnancy is low.

P.S.
My girlfriend just finished her menstrual period a few days ago and was using panty liners, but her cycle is irregular, ranging from 1 to 3 months.
If she wants to visit a gynecologist for a pregnancy test, when would be the best time to go? Or is it sufficient to use an over-the-counter pregnancy test? Answer: Due to her irregular cycle, it is advisable to use an over-the-counter pregnancy test each month.

Reply Date: 2018/08/26

More Info

When it comes to understanding pregnancy risks and testing options after intercourse, it's essential to consider several factors, including the timing of intercourse in relation to the menstrual cycle, the effectiveness of contraception used, and the methods available for pregnancy testing.

In your case, you mentioned having unprotected oral and vaginal intercourse with your girlfriend shortly after her menstrual period. Since her cycle is irregular, it can be challenging to predict ovulation accurately. Typically, ovulation occurs around 14 days before the start of the next menstrual period in a regular cycle. However, with irregular cycles, ovulation can happen at varying times, which increases the uncertainty regarding the risk of pregnancy.

Regarding the use of condoms, they are generally effective in preventing pregnancy when used correctly. However, if the condom slips off or is not used properly, there is a risk of sperm exposure, which could lead to pregnancy. In your situation, you mentioned that the condom slipped out during intercourse, and you touched the outside of the condom before continuing. While the risk of pregnancy from this scenario is lower than if there were direct exposure to ejaculate, it is not entirely negligible, especially if there was any sperm on your hand.

To assess the risk of pregnancy, it is also important to consider the timing of your girlfriend's menstrual cycle. Since she had just finished her period, the likelihood of her being in her fertile window is lower, but not impossible, especially given her irregular cycles. If she uses panty liners, it indicates that she may have had some residual discharge, but this does not necessarily correlate with ovulation.

If you are concerned about the possibility of pregnancy, the best course of action is to conduct a pregnancy test. Home pregnancy tests are widely available and can provide reliable results. Most tests are sensitive enough to detect pregnancy about one week after a missed period. However, testing too early (within a few days after intercourse) may yield a false negative result, as the hormone hCG (human chorionic gonadotropin) may not be present in detectable levels yet.

If your girlfriend's period is irregular and she misses her next period, it would be advisable for her to take a pregnancy test. If she prefers to visit a healthcare provider, she can do so about one to two weeks after the potential conception date for a more accurate result. Blood tests conducted at a clinic can also provide earlier and more sensitive detection of pregnancy.

In summary, while the risk of pregnancy in your described scenario may be lower due to the timing and use of condoms, it is not zero. If there are concerns about potential pregnancy, using a home pregnancy test after a missed period or consulting with a healthcare provider for further testing is recommended. Additionally, if you and your girlfriend are sexually active and wish to avoid unintended pregnancies in the future, consider discussing more reliable contraceptive methods with a healthcare professional.

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