Im on fertility medicine and if i have sex a week before the peak of ovulation, chances of getting pregnant?

Maybe: Generally you will ovulate 5-10 days after the last pill of clomid (clomiphene). Sperm live in the reproductive tract for an average of 3-4 days but have been known to live up to 10 days. Intercourse should be timed to around ovulation. Ovulation detection kits are a simple way of helping to accurately determine the time of ovulation and intercourse. Hope this helps. Good luck.