Helpp

So lately my partner has been driving me crazy. Like EVERYTHING he does. Even being nice, trying to rub my feet or my back, and saying I love you literally 40 times a day..... Driving me insane. Everything is pissing me off & I don't know how to handle it. Is it me or is it really my hormones? It's confusing in the head cause me and him have been together for such a short time and I'm currently 15 weeks pregnant... I just don't know how to feel about the feelings I'm having. His brother lives couple apartments down from us and I do not like him at all (drug related issues and a total a hole) he comes over all the time, I HATE it. My man let his brothers gf use my hair dryer without even ASKING ME! That put me over the top. Then, my partner is always wanting reassurance if I love him and if I'm happy with him, & constantly thinks I'm up to something bad... Really?? Common. I just can't handle everything anymore!!! 

Advice, tips ? Anything ugh....

Sorry but I had to rant :(