Pregnancy

Amyah
I think that I might be pregnant, I had sex on the 26 of June. I didn't notice that he took off the condom but he still pulled out. That same day I was spotting a little bit but I didn't pay it any attention. On my calendar it says that I am supposed to get my period at the end of this month, but for since Thursday I've been spotting, it's like a lightish pink color of blood. Can someone help me or explain why this is happening as soon as possible, because I am scared.