So over the weekend I had sex. Without a condom. I knew I shouldn't have done it. I regret it. But it's been a couple days. We had sex about 3-4 times with out a condom. He used the pullout method(which I know doesn't always work) and I've been having vaginal burning(maybe from no lubrication) and ive been having lots of clear but clumpy discharge. My period starts in 11 days. Could I be pregnant?