Can you get pregnant if you don't fully enter and don't ejaculate?

Patient's question:

Patient Gender: I am a virgin. A few days ago, I had sex with my boyfriend. There was no bleeding. He entered about 3 cm. No contraception was used. However, he did not ejaculate. Will I get pregnant? I am very nervous. What is the chance of pregnancy? Thank you

Doctor's answer:

Hello, according to your description, this situation can also cause pregnancy, but the probability of pregnancy is relatively low. For this situation, it is recommended that you wait a few days to see if your period is delayed.