Sex during the first trimester

I'm now 8 weeks pregnant and since I found out, I haven't had sex with my husband. I'm just honestly TERRIFIED because I kept reading things on here saying people started bleeding after sex. So I've just avoided it...my husband is amazing & I think he is scared too lol but I can just tell that lack of intimacy is there & I hate that feeling. So I'm at a loss here. Does anyone have any thoughts on sex in your first trimester? Is it risky? Is it not a big deal? My OB ordered an early ultrasound so last week we went in and everything looked great, including baby's heartbeat! 😍 The next time I have an ultrasound wont be until 20 weeks. They don't seem at all concerned with my pregnancy. I've not had any spotting or bleeding, just normal mild twinges here and there. I think I just worry I'm going to mess with a good thing lol. Am I crazy!? I'd love some advice if anyone has any!