8 weeks & brown discharge for 4 days

Lydia
I'm 8 weeks pregnant. I had a mmc in March. 
New Year's Day I went to the loo and there was pink spotting, then as the day went on brown. It's been brown since then and I'm panicking alot. EPU can't scan me til Friday and I can't go private as they're all booked up too. 
Me and Hub did have sex NYD morning, so yes there's a possibly it could have irritated my cervix, but I'm so worried it's the start of another miscarriage. My midwife said she didn't want to say anything as to get my hopes up, other than brown spotting isn't a classic sign of miscarriage. I did have brown spotting during my miscarriage but only a little and was alongside period cramps. I've got no pain but my boobs aren't hurting as much today. I think I'm just looking for an answer to say everything is fine, but I wobt know til Friday. I'm so scared.