T.K.
I would suggest just doing it. You have another baby coming and she/he will need to feed. You will have a bed full and no sleep if you keep both in there. It will be a tough few nights but in the long run you will both be better off. I know husband wants her there but he needs to understand that she will be less clingy later if she is forced to sleep alone. My little girl has been sleeping through the night since she was 3 weeks old (aside from feedings) by herself in her crib. We just put her there and let her cry. It doesn't take long (maybe longer for you since she has been with you so long). Anyway, that would be my advice.
T. K