Chances of Getting Pregnant After Sex

Don’t know your exact ovulation day? Most people don’t. This page uses simple choices that match how people think about timing. Pick the best match below to see the chance that one act of unprotected sex leads to pregnancy.

What’s the “fertile window”?

Your Inputs

Choose when sex happened (if you’re not sure, pick the first option): [{"timing_label":"Not sure (timing unknown)","per_act_probability_friendly":"0.031"},{"timing_label":"A few days before ovulation (1\u20132 days before)","per_act_probability_friendly":"0.30"},{"timing_label":"Day of ovulation","per_act_probability_friendly":"0.33"},{"timing_label":"Earlier in the fertile window (3\u20135 days before)","per_act_probability_friendly":"0.24"}]

Your Results

The chance of getting pregnant is {{One_In_X|{result}}}.

These numbers are averages from published medical studies. Individual chances can vary.

Generated by ChatGPT-5