Scared to have sex!!

I know, it can't hurt the baby, I have 2 already. But I'm really worried that this pregnancy will be ok. And I'm scared of I have sex. It will hurt my cervix or something and make me bleed😒 we haven't in a week and I just found out Monday so I need advice!! I'm really paranoid to do anything that will hurt the pregnancy. Its really early so everytime I go pee I'm scared I'll see blood. Which I haven't.. Thankfully. I'm only 4 weeks