Hi, Thanks for the query. The possibility of pregnancy depends on: -Presence of spermatozoa in preejaculate fluid -The period of menstrual cycle. If she was around her period of ovulation during the act, there is some possibility for pregnancy. Sometimes menstrual periods can get delayed by few days. So, wait for two more days. If she doesn t get periods even after 2 to 3 days, let her take urine pregnancy test. If test shows positive result, consult gynecologist, let your wife get examined and undergo ultrasound. According to the ultrasound findings and depending on the gestational age, method of abortion can be choosed. Upto 8 weeks, medical termination with tablets is possible. Take care.