No af since January 2nd all bfn

So my last AF was Jan 2nd, took a test pretty much every week since Feb 1st all bfn. Even had blood done and was negative. I also had an ultrasound done which didn't show anything but I have a very tilted uterus so they had trouble seeing with my previous pregnancies as well. I feel like I may be going crazy because I feel sick everyday just as I did with other 2 pregnancies, I can't sleep like normal, my boobs hurt, and I have a little pouch that I didn't have before with no changes to diet. Any suggestions or stories r welcome to put me at ease.