If I ovulate on day 17 or 18 and I

Patient: If I ovulate on day 17 or 18 and I had sex with someone on day 10 and someone else day 15 could it be the persons from day 10?

Doctor: Hello,Thanks for the query.The pregnancy is known to be considered from the sperms of the last sexual act. Here it is days 10 exposure that can be blamed for a successful coitus and pregnancy.Hope this helpsRegards