Can I Get Pregnant? Safe Days and Ovulation Timing

Can I get pregnant?

The average duration of menstruation is six days, with a cycle of 35 days.
The period was from June 28 to July 3.
On July 3, which was yesterday, I had sexual intercourse with my boyfriend.
My period has mostly ended, but we had unprotected intercourse for a while without ejaculation.
Is there a possibility of pregnancy? The menstrual app indicates that it is a safe period and shows ovulation on July 19 (my periods are generally regular, and I usually rely on this app to predict when my period will come).
Should I take a pregnancy test? If so, how many days after intercourse should I take the test? Thank you.

C, 20~29 year old female. Ask Date: 2016/07/04

Dr. Lü Lizheng reply Obstetrics and Gynecology

Based on the date calculation, it should be the safe period, and the likelihood of pregnancy is low.
If the next menstrual period does not arrive, you can take a pregnancy test.
Generally, it is more accurate to test for pregnancy 18 days after sexual intercourse.
Sincerely, Dr.
Lu Li-Cheng, Taoyuan Hospital.

Reply Date: 2016/07/04

More Info

To determine the likelihood of pregnancy and understand safe days and ovulation timing, it's essential to consider several factors related to your menstrual cycle, the timing of sexual intercourse, and the nature of the contraceptive methods used.

From your description, your average menstrual cycle lasts 35 days, with menstruation lasting about six days. Based on this cycle length, ovulation typically occurs around 14 days before the start of your next period. If your last period started on June 28 and ended on July 3, your next expected period would be around August 2. This means your ovulation would likely occur around July 19, as indicated by your app.

Regarding the sexual activity that occurred on July 3, since this was just after your period, it is generally considered a safer time in terms of pregnancy risk. The days immediately following menstruation are often regarded as low-risk days for conception, especially if ovulation is expected to occur later in the cycle. However, it is important to note that sperm can live inside the female reproductive tract for up to five days. Therefore, if you were to ovulate earlier than expected, there is a slight chance of pregnancy if sperm were present.

You mentioned that there was no ejaculation during intercourse, which significantly reduces the likelihood of pregnancy. However, it is important to remember that pre-ejaculate fluid (pre-cum) can contain sperm, albeit in smaller quantities. If there was any pre-ejaculate that came into contact with the vaginal area, there is a minimal risk of pregnancy.

As for the question of whether you should take a pregnancy test, it is generally recommended to wait until at least the first day of your missed period for the most accurate results. Since your cycle is 35 days, if you do not get your period by August 2, you can take a pregnancy test around that time. Testing too early may result in a false negative, as the hormone hCG, which is detected by pregnancy tests, may not be at detectable levels until after a missed period.

In summary, based on the information provided, the likelihood of pregnancy from the encounter on July 3 appears to be low, especially since it occurred shortly after your period and there was no ejaculation. However, if you have any concerns or experience any unusual symptoms, it is always a good idea to consult with a healthcare professional for personalized advice and guidance.

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