Lmp nov 25 intercourse on nov 30 dec 1 , 8, 9 i had regular periods 7weeks 1day scan due date sep 2 and 14 weeks scan due date aug 30 when was conception and ovulation happen?

8/30, 9/2 are same: Dates are just estimates, and a few days usually does not make any difference. One can just get a calendar and count backwards 38 weeks from the estimated due date (38 weeks from Sep.2 or from Aug.30) to see the estimated conception date. The exact conception date of a natural pregnancy is never known because nobody can tell when the sperm entered the egg.