question: 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