I've taken 4 pregnancy test and all of them have came up negative. My last period was last month and it was not normal. Since then I haven't been feeling well. I've had an upset stomach, nausea, and cramping. I have a doctors appointment but its still about a week and a haft away. Could I be pregnant? Or could something else be wrong?

Yes, you could. Ask your Pharmacist for the best HPT under these circumstances.