Pregnant and cheating fiancé

I am actually in shambles right now.. I have cried so much I tony know what to do. I am 25 weeks pregnant and recently I realized my fiancé didn’t show any care towards I or the baby. There are times am so hungry and even plead he gets me something on his way back but sometimes he either says he forgot or bring it when an already starving. He has been spending so much time drinking lately the other day he slept outside. Today he went out again all day. I found this behavior so strange and usually we have each other’s password and I use his phone all the time but I have never thought of checking his messages. I decided to recently only to find out he’s been collecting numbers from women and going to see them. One even called him my love please bring me food coz am so hungry. He actually went. I confronted him and he actually hit me. I gave up everything to start a life with him. Right now I don’t even know what to do or where to go...I am literally broken. I never imagined he could do this to me. I need someone to talk to