Period after MC

Last month I had miscarriage on Sept. 3. I was 6 weeks. After two weeks, tmi my fiancé and I had a heat sessions multiple times lol. My doctor told me that I am very fertile after mc but wait for 1st cycle to try again. But I didn’t mean to rush it, I’ve seen research that you can try again after 2 weeks. At this point, I did ovulate later on around after and again this months until I finally got my period on Sunday of October 15 after miscarriage.We had unprotected intercourse during the week, Saturday and Sunday. I noticed my bleeding at first was heavy and now it’s getting lighter. Is it normal ? Also is it possible to get pregnant right away because before my period ?