I’m gonna be on the show I didn’t know I was pregnant

I feel like I’m gonna be on the show I didn’t know I was pregnant. My period is over two weeks late and I am never ever late! I have taken two tests both negative. I want my dr to do an ultrasound can he do that? I really want to make sure 100% there is zero chance of pregnancy, this is crazy! I e had my period for 9 years now and never missed.