Can You Get Pregnant After Unprotected Sex? Emergency Contraception - Obstetrics and Gynecology

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Yes, it is possible to get pregnant after unprotected sex, even if there was no ejaculation inside the vagina. The risk of pregnancy primarily depends on the timing of the sexual encounter in relation to the woman's menstrual cycle, as well as the presence of sperm in pre-ejaculatory fluid.
When a man is sexually aroused, he can release pre-ejaculatory fluid (also known as pre-cum), which may contain sperm. This means that even if there is no ejaculation, there is still a possibility of sperm being present and potentially leading to pregnancy if it comes into contact with the vaginal area, especially during the fertile window of the woman's cycle.

In your case, since your girlfriend had her period just two days prior to the unprotected sex, it is likely that she was in a relatively safe period for pregnancy, as ovulation typically occurs about 14 days before the next period starts. However, menstrual cycles can vary widely among women, and some may ovulate earlier or later than expected.
Taking emergency contraception (EC) within two hours after unprotected sex is a proactive step to reduce the risk of pregnancy. Emergency contraceptive pills (ECPs) like Plan B or Ella work best when taken as soon as possible after unprotected intercourse, ideally within 72 hours, but some types can be effective up to five days later. The sooner the pill is taken, the more effective it is at preventing ovulation or fertilization.

It is important to note that while emergency contraception is effective, it is not 100% guaranteed to prevent pregnancy. Factors such as the timing of the menstrual cycle, the timing of ovulation, and how soon the EC was taken can all influence its effectiveness.
If your girlfriend experiences a delay in her period after taking the emergency contraception, it is advisable for her to take a pregnancy test about a week after the expected date of her period. If the test is positive or if she has any concerns, she should consult a healthcare provider for further evaluation and guidance.

In summary, while the risk of pregnancy is lower immediately after menstruation, it is not zero, especially with the possibility of pre-ejaculatory fluid. Taking emergency contraception is a responsible choice, but it is essential to follow up with a pregnancy test if her period is late. Always consult with a healthcare professional for personalized advice and support regarding sexual health and contraception.