Any advice how to spice things up?

I'm literally horny 24/7. Im married, no I'd never cheat on my husband. I got married at 17 turning 18 (yes I know I was young but don't come for me it was complicaited) and I can't help but fantasis about other men. I'm also pregnant too and my hormones are all over the place. I don't know what to do 😫

Ive had oral sex with 2 others gave and received but I've never had penetrational sex with any other men only my husband but he is so vanilla in bed I just don't have any interest in our sex life. His size is about 5". He had the nerve to tell me I was "loose" the first time we ever did it even though 2 fingers wouldnt be able to go inside me?? Anyways, I'll be so turned on and the moment he starts I get turned off and just dry up not in to it or him at all. I've only orgasmed twice with him.

I do love him and in all other aspects he is great but when it comes to sex. It's a no no.

I'd like to remain anonymous so I'll reply to things by editing my post.

Edit 1: he thinks everything is fine. It's always the same position or 2. I sometimes throw him comments and suggestions on things we can do or he will bring it up and I show him how into the idea I am and he will still continue to be the same once we start having sex.