Paranoid again!

I recently posted one already about being paranoid and again there was literally no way I could be pregnant but I keep getting these weird feelings in my lower stomach and i feel sorta nauseous every time I think about it but I made the horrible mistake of looking up symptoms of really early pregnancy and I keep thinking that I am pregnant I have a feeling that it's all in my head but I don't know how to stop tricking my body. I need some advice 💕