feeling insecure😞

So this morning this girl requested to follow me on instagram and my boyfriend started talking to her when we were broken up. And we were broken up so I get he could do what he wants. I found out they were talking because we got back together and I was being a snoop(I know it was wrong) but I found a number of someone under the name as "sexy" and looked up the number and seen it was this girl. And it botherd me a lot because he rarely ever told me I was sexy or anything like that. I still haven't had a compliment from him in idk how long. And I'm currently 17 weeks pregnant and starting to show enough that you know I'm pregnant and I can't help but feel a little sad that I'm only 20 and never going to have my body back, and when I seen this girl pop up today it just started to make me feel insecure because I think about how he thinks she's so perfect but can't ever tell me that😞 I know this probably sounds silly and like I'm overreacting and it's my hormones getting the best of me. But I just really needed to vent and just want to know a way of making me feel not so unattractive.