Relationship and pregnancy

I am newly married and also pregnant as well, I’m 7 months along and I’m in a great relationship. We dated for about 3 years then got in engaged pregnant and married within a few months.

I feel like our relationship is changing a bit. My husband hasn’t been very lovey dovey with me, my body has obviously changed and we still are able to have sex but I just feel so unattractive that I’m the most insecure I’ve ever been in my life with how I look. I’m starting to get paranoid that he could be cheating on me even though he is the best guy and so trustworthy. He is in a darts league and goes every Wednesday night and always has and now that I’m pregnant I literally just think to myself what if he is with someone else right now. This may be just because I’m pregnant and my hormones are all over but I just feel like our relationship is changing

Plus having a baby May only make it harder and worse. Everything happened so fast to be honest. We got engaged then literally 2 weeks later found out I was pregnant. Then we just did a quick marriage unifying thing and will have something next year but he’s been teasing me a lot more which is just our relationship and can be fun but idk I just feel like he may be falling out of love with me. Everytime I say something he always reassures me and says he loves me with all his heart but I just feel so ugly and not pretty that I just miss when we would get all dressed up and go on dates and we’re just in a more carefree state