Malimum, have you done a HPT? That's the first thing i would be doing! If you have and it was - but you still think you may be pg I'd be straight off to the Drs to get a bt. That's the only way to know for sure!

Good luck, let us know how you go

BTW, I am only just pg, but I have been having pains like af is coming for over a week now. And I have heard of many girls who experience 'normal' bleeding during pg. I'm sure one of them will pop in here to reassure you!