implantation

[tswin]

Hi guys I just signed up

I was looking to see if anyone can help me. ... I was due to have my period Thursday just gone. I had a slight brown discharge while having intercourse and since then I have had nothing. Its like I missed my period.... I have done a test but its come back as not pregnant?? Do you think its to soon to test. Should I wait for a week???. Please help

I've had three children and have never had implantation bleeding, but I know it's possible; some women have it.
Other possibilities are premenstrual spotting (which I have most months: brown spotting on and off for a few days before my period; it means nothing) or possibly a slight injury due to rough intercourse?
Again, I've never had that happen, but I have heard from other women that it can.
I will keep my fingers crossed for the first possibility: implantation bleeding.
Have you tested?