I've had brown discharge for the past 2 days. Not heavy or anything. Sometimes there's quite a bit when I wipe but most of the time I can barely see it. No cramps. Generally feel well. I'm too early to refer myself to the epu ( I've had ectopics so early scans are a must ). I've been waiting 2 days for my gp to get back to me. Should I be worried? I feel like this is a bit late for implantation bleeding.