I've had three negative home pregnancy tests, I'm on birth control pills. (Trinessa) Around the end of February I was not as diligent about taking my pills on time. My period was brown and pink for the first three days, then I started feeling nauseated, everything made me gag and I began to have lots of fatigue and dizziness followed by headaches. I have had my period since, but it's not as heavy as I normally have. My breasts are extremely tender, I've lost my appetite but yet have gained three pounds since the beginning of March. I keep feeling something gurgling, and kicking around in my right side lower abdomen. I've had a phantom pregnancy before, but this feels more than just a phantom feeling. This feels very much like a pregnancy, but I keep testing negative. What else could it be? IBS? Cealic Disease? Uterine Cancer?