I had a miscarriage back in November on the first. I just started my fertility window on Saturday and I had sex that evening into Sunday morning and again last night (Monday) into this morning. I'm experiencing a little cramping and I'm a little nauseous. What could this be? I couldn't be showing pregnancy symptoms already could I? With my last pregnancy that resulted in the miscarriage I didn't get sick at all. Please I need advice. We are trying to get pregnant is why I'm excited but then again scared.