Hubby keeps forgetting the baby's name....ughh!!

We are expecting a girl. We changed her name from Sabrina Elyse to Jocelyn Christine..and now when he refers to the baby he either calls her Sabrina or Jessica....i tried ignoring it but its happened atleast one time everyday this week.last night he did it again and then I look at him like.."really?" And then he is like what's her name again? And I just walked away. Its starting to kind of bother me. At first I could understand it because we did cha he her name from Sabrina but where did Jessica come from??? We havnt even considered that name.what the hell is going on with him?