HI i am new to this.I had a one nite stand 2wks before my Sterilisation op and was tested negative before the op,i slept with another guy 2wks after the op and well i am 3 months pregnant,he is now with a women since we spilt,i only just told him the true about it and how i am not sure if it his,how do i find out if the baby is his as he wants to be with me as he always wanted a child.please help as i need to find out soon.thanks