What to do when you regret your child's father?

My boyfriend and I were doing just fine before we found out we were pregnant. He has his own house, a steady job, and pets. I know he deeply cares about me and is excited to be a dad, but lately I seem to feel really trapped by him. Not by our kid, but by him. The house used to be his grandparents (who are still alive) and everytime I go to make changes he gets mad and tries to stall the painting or fixing things. This house needs a lot of work... his grandparents just let the house to go pieces and it smells like pet urine badly...and my boyfriend isnt exactly the cleanest person so a lot of dirty stuff doesnt bother him... and he keeps everything.... he has a 1983 paper mcdonalds cup on his fireplace. Not kidding.... and his dogs bark at everyone who comes in thehouse and they are not well trained. He said that this would be our house and our pets, but it seems like I cant ever do anything I want with the house without getting his approval but since its "his house" he can do whatever he wants without asking me...this isnt fair and I feel trapped by it. What to do?