I somewhat disagree about "unconditional" love. In my view, You Love innocent Children "unconditionally" but, ADULTS, well, You Love Them on Condition How They Treat You. That's just my view after having "loved" People who have mistreated me!! that being said.....
I would suggest that learning You are pregnant is ANOTHER LifeTime Commitment that can be kinda, sorta scary - in a way. If You Love One Another, my guess is that all will be well, just that You both need to make the adjustments to the "reality" of being "responsible" for another life!! I mean, if You think about it - this is BIG!!, REAL BIG!! and it can (kinda, sorta) "scare" anyone who realizes the ENORMITY of what being a Parent really "MEANS" - it doesn't mean that someone doesn't want it - it could just mean someone is taking it SERIOUSLY (as they should) but, none the less is a little scared??
Personally, I think You will Both be okay as You adjust to these "new" realities which I think SHOULD be a little "scary" - otherwise, I think one may not REALLY realize the ENORMITY of what it REALLY means to be a Parent!!
Good Luck (but I think all will be good after the "shock" wears off)
I will agree with the above poster EXCEPT for the part not to love a man unconditionally as I believe when you love ANYONE it should be unconditionally; doesn't matter if it's a child, your man/husband or your mother.
Try doing something nice for him, i.e. cook him a nice dinner or suggest going out for a nice meal and a movie afterwards. Try to find something you all like to do together and have fun. Perhaps if your man sees you in a positive mood he may follow suit. You can change the direction of this situation.
The easiest answer is just stop being mean. You can't control anyone else, you can just control your own behavior, and you can stop being mean. That might begin to help.
By the way, don't love a man unconditionally. Love a child unconditionally, but put clear conditions on your love for a man.
Best wishes.