Could I be pregnant?

Hey guys.

I am just so loss for words & what’s going on right now. I am 9 days late.. my last period was 11/20 which means that my period should have arrived by 12/19. (My cycles according to this app average 30 days. Sometimes its early. Sometimes it’s 2 days later. Either way ... my period was consistent); background: I stopped taking birth control back in May.. my periods have been regular since July.— I am now on day 39. I feel nauseous, hungry, tired, slightly cramps .... but still no period..

I took 2 test, day 37 & day 38 negative.

Has anyone else ever experienced this? If so when did you get your BFP

(I do have a 4 year old. Last time I missed a period even on IUD & the Pill- was when I was pregnant with my daughter.)