Reasons why you can’t get pregnant if you have intercourse the day after ovulation

One possible reason is having sex on the day after ovulation. For some women, even having sex the day after ovulation may not lead to pregnancy. This condition is called an "unintended pregnancy."

So, what are the causes of unintended pregnancy?

Let’s look at some factors in the female reproductive tract. The female reproductive tract includes the vagina, uterus, fallopian tubes, and ovaries. In the female reproductive tract, the ovaries are where eggs are produced, and the fallopian tubes carry them to the uterus.

In the female reproductive tract, there are factors that may affect the union of egg and sperm. These factors include:

1. Sperm quantity and motility: Sperm quantity and motility are one of the key factors affecting pregnancy. If the sperm count is insufficient or the sperm motility is insufficient, a woman may not become pregnant even if she has sex during ovulation.

2. Female reproductive tract environment: The female reproductive tract environment can also have an impact on pregnancy. For example, bacteria in the vagina may affect sperm survival and motility, or the environment in a woman's uterus and fallopian tubes may affect the union of sperm and eggs.

3. Female reproductive cycle: The female reproductive cycle also affects pregnancy. For example, a woman's menstrual cycle, calendar holidays, and the timing of fertilization can all affect pregnancy.

Therefore, the cause of unintended pregnancy may be the result of a combination of factors. If a woman has sexual intercourse the day after ovulation but does not become pregnant, she may need further examination of the woman’s reproductive tract environment and reproductive cycle. If women have not become pregnant within a period of time, it is recommended that they consult a doctor to identify any possible problems and obtain appropriate treatment advice.