Sex after miscarriage?

Marli • Lottie Mae norm 3-23-20. Liam Thomas🌈 born 4-7-17. Angel baby 5-4-16. Hubby & I married 11-1-14. Have two Pomeranian `babies`.
When did you start back? 
Different things say different times. Some say once you've stopped bleeding. Some say 2 weeks. Some say 3. 
It's been just over a week. I stopped bleeding two days ago. 
Is there a reason to wait? Is it just a chance of infection? 
Is there a reason to wait until after first period to have unprotected sex? Other than pregnancy? Is there a real reason to wait on pregnancy until after? I know people who got pregnant before and had a perfectly healthy baby. 
I don't like or trust my doctors office and plan to get a new one ASAP. But. I thought I'd reach out those those who've been through it. And get you opinions.