16 days past Missed Period

B

I was supposed to get my period 16 days ago, and it still haven’t gotten it. I’ve never skipped a period before, so I was really excited. I’ve been super exhausted and nauseous on and off. The foods I usually eat now sound so gross, and make me want to puke. I’ve taken probably about 6 pregnancy tests since my missed period and they’ve all been negative. Including the one I took this morning. I was starting to be excited that I could be pregnant. But now I feel like it was just a fluke. Anyone else experience this before?