Male sim preggy?!?!?!?

My male sim got pregnant even though he wasn't abducted..it was really weird.. well, it started when i made the lovers"try a baby" the 1st try, i didn't here the "sound" where it says its successful..so i tried again..then i heard the SOUND! the next day the wife got her bump! surprisingly..the husband also did!! weird huh!? I don't know if this help but the wife's job is paranormal. can you help me figure out how did this happen??