My boyfriend watching porn throughout my pregnancy has made me feel so insecure about my body. Not sure I love him anymore, would you accept this?

If he knew you were uncomfortable with it but continues to do it he blatantly is disregarding your feelings.
Build up your self-esteem get your body to what you want it to be so you don't have to rely on him to make you feel good.

I told my boyfriend early on that I wasn’t comfortable with him watching porn. It made me feel like shit knowing he was getting pleasure from watching another woman. Since then, he hasn’t watched porn because he knows it’s an important boundary for me. Don’t back down on your boundaries, it’s perfectly normal not to feel comfortable with your SO watching porn, and he should respect that you’re uncomfortable with it.

Honestly, regardless of the “agreement” you both have on how this will be treated in your relationship, unfortunately you cannot control them or know what they are doing at any given time. My ex knew I didn’t like it just because of the way it was gone about and as soon as I turned my back she was there masturbating to porn! I can literally just step into the kitchen to cook, go number 2, quickly clean something in another room, heck it didn’t matter but she would be quickly at it behind my back (even beside me in bed while she thought I was asleep) honestly it gave me big trust issues, made me loose respect and I stopped finding her attractive and even wanted to be intimate with her, so I’d really suggest trying to address this issue or voicing your feelings before you start feeling much worse