The last time that I had sex was on Nov.16th 2009. I started spotting one day later, which turned into a period a few days later, ending on Nov.27th. I started spotting again on Dec.17th, which turned into a period a few days later also, ending on Dec.27. I haven't came on my period since then, but I have been having some mild cramping lately. Is there a chance that I could be pregnant even though I have had two periods???