I know you were looking for the male input, so please forgive my two cents. I have been pregnant and I loved having sex then. I loved how I felt being touched, feeling so much like a woman, I loved how swollen my breasts got, I just enjoyed it as part of the cycle of a womans sexuality.
I didn't get morning sickness, I was lucky that way and I know that if I was to ever have another child I would enjoy it just as much.