About 3 weeks ago I started feeling sick to my sdtomach in the late afternoons and evenings. I'm tired all the time, I have mood swings, I still feel sick. My boyfriend thinks Im pregnant. Right now I am only 3 days late on my period. I took 2 home tests and both came up negative. However Im not having any of my normal pms symptoms that I should be having right now at all. Is it possible to have both tests come up negative and yet still be pregnant?