Panic! Help!

Morning ladies,

I am probs just being paranoid, its my first pregnancy. . . We have waited nearly seven years for our miracle!

Cramping tmi . . . I started intermittently cramping three days ago, started with a little pinkybrown dc two days ago. Today its brown and more consistant cramping, almost like mild period cramps or gripes when you get the runs. I am near 6wks prego. I have googled and says about implantation bleed. . . But i am outside the implantation window. Any advice welcome please! X x