anyone have an idea? help please!

Hey ladies I am hoping you can help me! I woke up this morning and took a pregnancy test because I am 11 DPO and my period is suppose to start today. It came out negative. As the day went on I had mild cramps and what looked like the start to my period after using the restroom. 5 hours later it's gone! I was think implantation bleeding maybe, but how long until I would get a positive. You think it maybe my period?!? I am praying for a Christmas miracle!! Thanks in advance!