What should i do?

Sam

My husband and i have been trying for 2 years with no luck. This time around i was supposed to get my period feb 24 and nothing. Its Its currently 2 weeks with out it, negative test and on the first week it was late blood test was also negative. Im not the one to miss or be late. Specially this late. I dont have much symptoms besides lot more discharge then usual and back pain. Im also pretty gassy lol. Im stressing myself out cuz i have no answers. Im just really want to understand whats going on. My doc just said to wait anything week and if test are negative id be going on meds to start my period but im scared that i am and its just not showing up on the tests. This would be my 1st and I'd never forgive myself if i didn't try everything i can. Please help im not sure what to do. If i ask for an ultrasound would they do it?

*Update - I'm 3 weeks late still negative I honestly don't understand what is happening. I had some weird crampy feeling in my cervix but that's pretty much it. I guess I little tired in the afternoon really need a nap but can't cuz then I feel 20× worse if I do.