Intimacy and sex while pregnant

Katie • First time mom 🌈 💗 My angel baby came 7/22/21 👼🏼 Pregnant with my second due 9/21/23💙💗 Blessed to be happy and in love 👫🏼

So I know not everyone here is pregnant currently. But I need advice because my boyfriend is a very sexual person. I’m not the most sexual, I love just being the caring, wifey material and what not stuff. But we still do have a sexual life and what not. That being said ever since I fell pregnant sex has been different. I dont know what it is, sometimes it feels like he is hitting the end of my cervix or something and now that I’m almost 20 weeks when we are intimate sometimes I feel a bump where the baby is like being constantly pushed out near my stomach. And it’s super freaky. I dont know if maybe it’s the positions we do, or what but I feel terrible because he doesn’t want to continue when I don’t feel right but I don’t want him to feel like he isn’t getting his sexual needs taken care of... and when I talked to my OB about it a while back she told me to lay off sex for a bit. Which i really don’t want to do. It just makes me super insecure and feeling less of a women that when we get intimate it’s not fun for me...😩 I just want to enjoy sex and not feel like it’s going to be uncomfortable!