Opinions/help please 😫

So according to glow I was supposed to start on the 12th still nothing. No signs really pointing to AF. I’ve had a headache almost everyday, yesterday I slightly started to get cramps (they were nothing like period cramps but they’re just annoyingly there), my appetite is all weird (I’ll get hungry get me something to eat, eat a little bit of it and I’m full and then hungry again in a little while), my emotions are all over the place, and I’ve had no motivation/energy to do anything or get anything done. I gave myself a couple days because it seemed like I was starting anywhere between the 11-12th but I took a test yesterday and it was a BFN. Should I wait a couple more days and take a test again? The test I took yesterday was one from the dollar store.