I had sex on the 27th and 30. On the 27 i had my period, and on the 30 it was gone. We used a condom for most of the time, but on the 30th, we ended with not using a condom, and once he pulled out, he then ejacualted. I got my what I think was my period around the 15th ish, and then I had in August 8-11. I also took a test on August 8th, and it came out negetive. Is their any way this could be implantation bleeding? I doubt I am pregnant, but I am still nervous! HELP ASAP! Thank you so much!!!! :-D