35 days late 😳

Amber
So confused! It's been 65 days since my last period. Not sure what to think. My husband and I had sex the day before I was suppose to get my period in November and nothing came. I thought it was impossible to get pregnant the day before your period but then started thinking well what if I am? So I took a pregnancy test 11 days after and it was negative but then was told you really need to wait 14-21 days. The second one I took at 16 days and another negative and the third on day 21 negative as well. Now I'm on day 35 and have missed December AF due date. HELP!Â