What to do?!

I had a miscarriage on Oct 7th, got my period on Nov 7th and Dec 8th. I am now 4 days late on period and every test I take says negative. Just called doctor and she said to wait two weeks to take test again. I just want to know if I am or not, cause now I am messed up with when to start and ovulation test. Any good advice? We are trying for our first one and I know we have to be patient.