Conversation: The conversation between human and AI assistant.
[|Human|] hi ive just found out that im pregnant.i last had sex with my ex partner on the 18th september before we split up.i met someone else and i had sex with him on the 25th september.i dont know when i would of concieved and im really confused.i done a pregnancy test last week which would of been 2 weeks after i slept with my ex partner and it said negative.i done another test about 2 days ago which was nearly 2 weeks after i had slept with my new partner and it said positive
[|AI|]  HI, I understand your concern.  - Urine pregnancy test is reliable after 8 days delay in periods/ 3 weeks after the sex.  - You can calculate according to possible ovulation too. Usually ovulation is 14 days prior to expected date of menstruation....provided menstrual cycle is regular. & conception is possible 3 days before & 3 days after the ovulation You can calculate fertile days using above information & guess the possibility.  - Chromosomal analysis is the perfect way to find exact father.  Thanks.