Help please

So i am 3 months pregnant. After an abusive and failed marriage i found the man of my dreams we are engaged and we are actually moving in together this weekend lately my anxiety and emotions are all over the place ive also been feeling so insecure with myself is affecting me so much before me my fiance had couple of girlfriends or whatever and they all have a type like skinny and so different than me. I am a thick women 12-14 jeans size with big booty and hips nothing like what he ever dated before. I dont know if its the pregnancy hormones or what but i feel horrible not sexy not beautiful and is affecting me mentally a lot. I never felt like this before i am always very confident i just keep asking myself why me ? Why if i don't look nothing like his type.. i just needed to vent