Hello doctor! Can you advise me on how to calculate the exact age of the fetus based on the date of intercourse or which method has the least error? Thank you, doctor.

Hello doctor! I have a question about fertility. I just had an ultrasound on August 26th and I am 4-5 weeks pregnant (no embryo, fetal heartbeat or yolk sac yet).

On February 6, I had unprotected sex with ejaculation outside. On February 19, I had my period (my period is relatively regular). On March 13, I had unprotected sex again but couldn't pull out in time, so I thought there was some semen left inside. On March 19, I saw a little blood, thought it was menstrual blood, but then it disappeared. I bought a pregnancy test and saw a faint second line. Doctor, can you tell me how to calculate the age of the fetus? Because I didn't think that from March 13 to March 19, the test would show two lines. If it was due to the sex on February 6, will it affect me if I take antibiotics or have sex for a month afterwards?

Gestational age is one of the important factors that help assess the development of the fetus. Methods of calculating gestational age may deviate slightly from reality, but not too much. Knowing the exact gestational age can help you take the initiative to take care of yourself and your baby. Therefore, you should go for regular check-ups and monitor your pregnancy during pregnancy.

According to statistics, 80% of pregnant women give birth between 37 and 42 weeks of pregnancy, of which 9% give birth after 40 weeks. 11% of pregnant women give birth before 37 weeks due to some unusual cause. So how many weeks of pregnancy is considered full term?