So me and my boyfriend where getting dirty and he was eating me out and fingering me and then I gave him a blow job with out a condom and he cummed in my mouth. After he cummed we were cleaning him up and me up with some tissues we had close by. After we had cleaned him up he started fingering me and soon after his fingered entered me we relized that there could still be some cum on his fingers so we immediately went to the drug store and bought the plan b pill just in case any cum got inside me. This was on Saturday evening and today is Thursday so it has been 3 and a half days. I haven't experienced any spotting or my period yet. My period is supposed to come on the 11th. We did some reading online and a lot of sources say that some women see spotting a few days after and that your period might come early. I have a lot of discharge though and I have had some almost cramp feeling like its the strangest feeling but it is almost like it is tight down there. Should I be worried that I could be pregnant?