I'm not 100% sure what's going on here. AF was do on the 2nd, it is now the 18th and no sign of it showing up. I took a HPT (cheapie from dollar tree) a couple days after missed period, negative. Less than a week later I tried another HPT (equate digital), invalid. So I took another two days later (regular equate, blue dye test), invalid. It's been about a week and I'm out of tests. Last night we went out for dinner. I've been having a craving for shrimp, so that's what I ordered. Not even an hour after getting home and I'm puking up everything (I had felt nauseous a couple days before but it wasn't too bad and eventually went away). I've been so sick to my stomach ever since and have thrown up about 3 times today. I'm just curious, do I just have a case of food poisoning or could I be pregnant? Sorry for such the long post, I'm just wanting some opinions. TIA.