dont quote me on it, but conception last about 7 to 10days prior 2 the date the doctor gave u. so if i'm not mistaken u were probably pregnant just right about that time. it's all just tooooo close 2 not do a dna test. i was kinda in the same boat but i was freakin out over about 1 whole month of a difference. the sono tech helped become logical with dates. turns out my husbands. but i'm 5mos and i still freak out and say "but what if". so i still might do a dna testing. there prenatal paternity , can find out with in days u just have 2 have cooperation from a 1 of the guys.hope u figure this out. it gets extremely stressful and u want 2 not stress cause that can
affect the baby. hope i helped a bit. remember the docs r not always dead on with dates they can be off by days sometimes.