I had unprotected sex on 4 days before my period came on. It came the time it was supposed to and today is my last day like normal. But the problem is I bleed really heavy but this period is really really light. I don't know whether to call it spotting or light bleeding because I havent had either of them before. But I called my doctor and she said she doubts I'm pregnant because I ovulated before I had sex. But if it's not that I'm confused. Could I be pregnant??