Insecurities during oregnancy

So I am currently 31 weeks and it has been a rollercoaster of different emotions throughout this pregnancy. Majority of the time I am SO excited and I can't wait to meet my little man and nurture and love him and raise him. But there are other times where I am stressed and just sad about myself. I know pregnancy changes you but I don't feel like myself and i feel like I am not at my best. I'm insecure about how much I have broken out on my face and back and am so afraid I won't be able to get my pre pregnancy body back.