Pregnancy Risks: Can Friction Lead to Conception?

Probability of Pregnancy

Hello, doctor.
My last menstrual period was around May 24, and I usually have a very light flow that lasts about four days.
Last Friday, June 23, I had some intimate contact with my boyfriend; we engaged in external rubbing for less than a minute without penetration, and he did not ejaculate on me.
However, today is June 29, and my period still hasn't arrived.
My menstrual cycle is irregular, often varying by about ten days.
Because of the intimate contact this time, I found many online sources suggesting that external rubbing can lead to pregnancy, which has made me a bit worried.
I would like to ask for your advice.
Thank you!

Ms. J, 10~19 year old female. Ask Date: 2023/06/29

Dr. Zhang Kunmin reply Obstetrics and Gynecology

Hello, based on your description, the chances of pregnancy are low but not impossible.
As long as there are active sperm in the vagina during the ovulation period, there is still a possibility of pregnancy through any means.
It is advisable to take appropriate contraceptive measures, and if necessary, consult a physician for evaluation.
Thank you! Wishing you safety and health.
Dr.
Chang

Reply Date: 2023/06/29

More Info

When it comes to understanding the risks associated with pregnancy, particularly regarding the possibility of conception through friction or non-penetrative sexual activities, it's essential to clarify a few key points.

First and foremost, conception typically occurs when sperm fertilizes an egg, which usually happens through vaginal intercourse where ejaculation occurs inside the vagina. However, it is important to note that sperm can also be present in pre-ejaculatory fluid (pre-cum), which can be released during sexual arousal. If this fluid comes into contact with the vaginal area, there is a potential, albeit low, risk of conception. In your case, since you mentioned that there was no penetration and that your boyfriend did not ejaculate, the likelihood of conception is significantly reduced but not entirely eliminated.

Your menstrual cycle plays a crucial role in determining the risk of pregnancy. You mentioned that your cycles are irregular, typically ranging from 24 to 34 days. Irregular cycles can make it challenging to predict ovulation, which is the time when you are most fertile. Ovulation usually occurs about 14 days before the start of your next period. If you had sexual activity close to your ovulation window, the chances of conception could increase, but given your description of the encounter, it seems less likely.

It's also worth mentioning that stress and anxiety about potential pregnancy can sometimes lead to a delayed menstrual cycle. If you are feeling anxious about the possibility of being pregnant, this could potentially affect your cycle.
If your period does not arrive within a week or so of when you expect it, it would be advisable to take a home pregnancy test for a more definitive answer. These tests are generally accurate if taken after a missed period. If the test is positive, or if you have any concerns about your menstrual cycle or potential pregnancy, consulting with a healthcare provider would be the best course of action. They can provide personalized advice and support based on your specific situation.

In summary, while there is a slight possibility of conception through non-penetrative sexual activity, the risk is considerably lower compared to penetrative intercourse, especially if ejaculation did not occur. Monitoring your menstrual cycle and taking a pregnancy test if your period is late will provide you with clearer answers. If you have further concerns or experience any unusual symptoms, seeking medical advice is always a prudent step.

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