Please help! Ovulation after miscarriage?

Hi there ladies!!
Please help me out!!
I suffered a miscarriage on Christmas. I was 10 weeks, but knew I was going to miscarry, at 8 week scan baby measured only 7w 3days. I waited to mc naturally. At scan on 12/16 HCG was 3,460, two days later it was 1,910, so dropping quick. Started spotting 12/20, lost baby 12/25, stopped bleeding 4 days later.

Now, it's been 5 weeks. No period. We got the okay from our doctor to start trying again as soon as bleeding stopped, and try we have. Our sex has been unprotected, usually 4-5 times a week. I got pregnant with the baby I miscarried our first try.

As far as ovulation goes:
I have always had a clockwork AF. 28 days, always. However, I've always felt like I ovulate more like a week before my AF, not two. Doctor also confirmed that I ovulated late last time I conceived, My LMP was October 11th, conception dated Oct. 30th, postive test was Nov. 9th.

My question:
I tested 3 days ago and got a negative. Had ovulation-like CM Jan 22-25. Could I be pregnant? Is there still hope since I don't have a period yet? Could I have ovulated 4 weeks after my miscarriage? Is this normal?

How long should I wait before testing again?

Thank you everyone in advance! Please help this hopeful mama out!