Lost. HELP!

Jessica
My husband and I have been TTC #1 for about 8 months now. My last AF was Aug 26 and with a long cycle of 37 days I'm still regular every month all though I may skip a month due to the length. I am now 10 days late and am lost. I get randomly nauseous but nothing severe and usually at night and sometimes I can't even eat or look at food I always had so no symptoms.Ive even used 4 tests and all negative. The last app I had put my ovulation at 2 weeks before AF but this one puts later which is confusing. I'm not sure what to do maybe it's all in my head. Has anyone else gone through this??