Hello, I think I might be pregnant. I had sex then couple of hours later I had what seems like a period but very light not like my normal period as I'm heavy. I have bad stomach pain and eating loads. I've done tests they all came back negative. Also have really bad stomach pain at the top and bottom part of my tummy and my ovaries hurt a lot even when not on my period. My tummy gets bigger and bigger and don't know why as tests are negative.