Insecurity in pregnancy

Just as a disclaimer my husband has done nothing wrong.

I am naturally a more jealous person to the point I find it hard that my husband may find another woman attractive and 90% of time I know it means nothing. We openly chat about it and he's so thoughtful and made a point of not putting things in front of him that he knows would fuel that. We're both Christian and feel that we should maintain our marriage to be just us and not allow things to not be pure.

But this pregnancy I am so insecure and I used to blame him and I am acutely aware that this is my issue. I am so tearful I feel so unattractive and repolsive. I am not heavier yet I am nearly 27 weeks and weigh what I did when I fell pregnant. I am struggling with the mental impact of this. He tells me he adores me and is so grateful I am carrying his daughter and I believe him but I cannot shake this funk. This is no 3 and last baby but I just can't cope with it. I'm so emotional I hate it.

I know I will get told men look get over it but it feels to me like that means he doesn't love me. It hasn't been this bad since we first got married (we waited till marriage and I remember feeling like I couldn't take that back) were nearly at our 8 year anniversary so it's been a long time but I don't want to fall out with him if I cant shake this.. Am I alone feeling like this?