An unsupportive boyfriend

Well don't know if it's me being sensitive but I'm kind of moody lately and it's only going to get worse my hormones are all over I'm crazy on a normal day haha I'm 15+2. My boyfriend seems to be getting more sensitive than me he takes things to heart and seems to be reacting badly to me being a little snappy it's really not helpful. As I am not feeling the best as it is during this pregnancy 😕🤷‍♀️. Any one got any advice on how to help improve things we bicker a lot lately and seem to be falling out I know I need to be a bit better but it's hard when your tired and moody and have a 2year old to take care of as well as family and house to run. He is being really unhelpful and starting to have a go at me for the slightest things too think he's the one expecting not me haha I feel like I'm loosing my mind he's make my me not want to be around him!! Grrr help