Bloated...

So my period is 16 days late and my stomach has been looking like this for the last week and a half and Ive been getting some nausea as well. I have taking three pregnany tests and the first one was with a VVVFL and the last two was negative. I just dont know what to do anymore. I dont feel like Im about to get my period and I feel very little pregnancy symptoms so Im a bit confused. The first day of my last period was February 29.