TTC #1

UPDATE

So I AF still hasn't shown up, I'm now 14 DPO and super nauseous all week. CD #38. Tested this morning and negative again. Could my levels be really low still or AF just playing mind games with me. I just wanna know, either get AF or get a positive

So this is from another app, but the gray days are considered my days being late, I was supposed to get AF on the 14th, but I've gotten BFN's when i tested the 14th and 16th. So now I'm just waiting for AF or a positive. No PMS symptoms or anything, just nauseous since last Saturday night. Any tips or opinions is appreciated.