Period late, no symptoms, negative pregnancy test, HELP

I need advice. My husband and I have been ttc for 7 months. I’m not 100% sure when I ovulated but I know we had sex at the right time. My period was due around 10/23. I usually have a 35 day cycle. Longest was 37 and that’s rare. Today is now cycle day 39. I’ve gotten 2 negatives for hpt. I haven’t really had any pms or early pregnancy symptoms. What do I do? Could I till be pregnant?