Having Second thoughts

Isabel. • A mother, a friend, a housewife..
Hi ladies,I would like a HONEST ADVICEs from u all about my S/O, he's about to move in and I'm a mother of a 3yr old boy and I'm expecting my 2nd child. This all is frustrating Bcoz I'll have him to support me mentally and physically but not financially!!since I'm pregnant I've been irritated,moody  and pickings fights with him, he calls me stupid,mental and selfish all the time we argue and tbh I don't like it. Now I'm think how am U going to workout with someone who doesn't help me financially???thats really mean of him