sex during pregnancy

Hey ladies, I'm 12wks pregnant and since we found out, my partner and I haven't had sex. We are just too anxious incase I miscarry, as we have had two miscarriages before.. both were between 8-9 weeks. We have had oral sex but not full on penetration.. how do you all feel about having sex during pregnancy? Did you stop & then start again at a certain point? Any tips on comfortable, non harming positions?.. my partner and I miss being intimate but we are just so worried that I may hurt the baby or cause a miscarriage. I know I'm probably
Just being silly and paranoid but I'm so anxious this time around. Can't wait for our first scan next week to see our little bean and see if everything is okay! I would appreciate any your opinions on this matter.. thank you x