ok I have NEVER admitted this to anyone before, except myself, I have name changed but I am an old timer here.
I have a massive problem with my own insecurity and I guess jealousy, it's going to start impacting my relationship with the most wonderful man I have ever known.
Before explaining I want to point out that I KNOW it's not right, reasonable or a very healthy way to behave/feel, hence me reaching out for advice from you lovely people.
I will also say that DP hasn't once mentioned it being an issue but if past relationships are anything to go by, it will happen because ... Well, let me explain.
I hate to be alone, no idea why but I do. I don't have a huge amount of friends. I dip in and out of friendships a lot and have have spells where I'll keep myself to myself. I am close to my siblings though.
I don't like it when DP goes out. There I said it. 
I have no idea why though, he only goes to his hobby meeting with 2 other guys between 2-3 times a week but I still get jealous and always want to be with him. How pathetic (now you know why I name changed!)
We get invited to a lot of social events, but we have children and it's usually a case of if we can't both go then we don't. I get tearful and down when I'm by myself, I really need to combat that.
I don't think I'm explaining this well at all but I hate feeling like this, I've tried to just not feel it but it's not working so well, as I said DP is the most amazing man, I have never felt so loved and yet still these stupid feelings are rising up again. It was a huge problem in my last relationship and I don't want to be like it anymore.
We have a baby on the way and I'm not sure the hormones are helping at all. I'm too e,barrassed to bring it up with him because it makes me sound nuts, does anyone have any suggestions at all?