Can you get pregnant without taking safety measures?

Patient's question:

My period was on the 12th in September and the 13th in October. This month, after I had sex with my boyfriend, he inserted into me but did not ejaculate, although there were a few drops of pre-ejaculate inside me. Since we did not use any protection, I would like to ask if there is a possibility of pregnancy? Thank you very much

Doctor's answer:

Hello, this is difficult to say, but it's possible that you might be pregnant. Pregnancy is affected by many factors. However, in general, unprotected sex can lead to pregnancy. If a man's sperm enters a woman's vagina and reaches the uterus, and combines with an egg, pregnancy is possible.
Advice: If it's been 4 days after your period, it is generally considered a safe period, and the chance of pregnancy is relatively low. However, there is still some risk. Whether or not you are pregnant can only be determined when your next period arrives. I hope this helps.