last month I has my period and This month no period its almost over and going on 2 months with no period, if i am I would be 5 weeks and 5 days I had cramps I have acid reflect I feel like im going to vomit but don't My breast are tender to the touch and My back and stomic under my bra wire have been itchy like crazy I took a test last week and it said negative. I feel like im pregnant I have been emotional and I have had mood swings and I am so tired i am on my feet all day at work and that does not help at all. I don't want to keep buying test or go to the doters if its going to be negative do i need to wait a few more weeks before i try another at home test?