Brief history..used best friends sperm and syringe..did positive pregnancy test.Then had huge bleed,cramps etc..presumed mc.Following month slept with ex partner..got pregnant.Everyone says my ds looks like best friend.Ex says ds doesnt resemble himself.Mum keeps telling me to have a dna test as ds is the spit of bfSurely he couldnt possibly be best friends.Had early scan which almost certainly matches with ex.Help.