I have found out I'm pregnant on Sunday and I am 5w5d today. 

Saturday I've noticed small cramping and tiny bit of pink CM, so I was sure it was the beginning of AF. 

I was already late,so I tested on Sunday and saw 5 positive tests (2-3 weeks indication, very quick results). Since then I also noticed brown light spotting. After reading a bit I'm worried that it should have stopped by now if it was implantation spotting. Has anyone else experienced longer light, brown spotting? I have an appointment with my obgyn on Monday but I can't stop worrying. Many of my friends had a miscarriage and I can't help but feel nervous...