I'm 2 days going on 3 days late.

I tested the first day of my missed period (mid freak out/excitement) and it said negative. Ive read and been told to wait a week after your missed period to test. So that's my plan. But I have no signs of a period. Besides pretty light cramps like I would have before my period (I think anyway), but they are very far and in between. But I had those along with very tender nips (I never have any boob problems before my period) about a week and a half before and they both stopped Friday, the day before my expected period. But my cramps came back lastnight/today.

I also have been bloated and extremely gassy the past few days and today as I was wiping down the counters and cabinets(something I do alllll the time) I was sweating like crazy and felt like I had ran a marathon and had to sit down for about twenty min to catch my breath and calm down. 

Am I getting my hopes up and freaking out for no reason?!