PREGNANCY HELP!!

Ok girls, so I would be roughly 3 weeks pregnant on Tuesday! We are 99% sure I’m pregnant due to all the changes I’ve been going through at the moment... anyway.

I started bleeding a little yesterday? It hasn’t stopped but definitely hasn’t gotten any heavier and is quite bright in colour. But it’s been going for a few hours over a day now... is it still implantation or do I assume I’ve miscarried? It’s gone between being quite pink to brown. (Grim)

I’m panicking because I was so excited and now I’m wanting to hold back :(