Brown discharge?

Lauren
Have been on Cetravette (mini pill) for almost a month now and may or may not have had an early miscarriage almost 2 weeks ago (was not aware I was 3 wks pregnant but had miscarriage symptoms, preg test then turned up neg) and was lots of bleeding etc. 
2 weeks onwards, I'm still having a brown discharge (enough to mark my panty liner plenty but not enough to be classed as a period) but going on holiday in two days so don't really want to be dealing with it. 
Is there anything I can do/take to stop it? Has anyone else experienced it and knows what's going on? How long will it last for? 
Many thanks ladies xx