Period? or pregnancy(women only.)?

My first question is , how long has it been since your last period? The symptoms you are describing do sound like a pregnancy that is in the later stages of the 1st trimester. I say late 1st trimester due to the stretch marks and no weight gain. Forget the home pregnancy tests. I think it may be time to go to the doctor. this way you will know for sure and begin prenatal care. I hope this has helped and best of luck to you!