Ovulation after mc

Heather • so blessed to have my 2 beautiful children!
I hope my body isn't playing games with me, I mc Dec 17 at 6 weeks pregnant. I had a 0 hcg Dec 22.. I know 3 days ago I had ovulation pain and that ewcm and my ovulation test was positive as well. It was positive when I was pregnant and a few days before my recent ovulation test it was negative.. I had sex pasted few days, can I get pregnant again that quick without starting my period? Doctors wanted me to wait after 1 cycle but I don't want to. Is it safe to get pregnant that quick too?