Hi @birdbybird sorry to hear you're going through this. It sounds a bit similar to my MC, I had a scan at what should have been 7+5 and it measured 6 weeks with no heartbeat. I started bleeding lightly at first brown, then red for maybe 3-4 days. Then the cramps got really heavy maybe on day 4-5 (like super super heavy period cramps), I took paracetamol and had my hot water bottle. The day after the cramps got really bad, they got a bit better which confused me, but on day 5-6 I felt something 'drop out', ran to the bathroom and pretty sure that was the sac. I expected to feel immediately better but I didn't, I then kept getting cramps, almost contraction-like, for two days. Then it subsided and the bleeding stopped a couple of days later - so the whole thing lasted around 10 days. Sorry for the details I just thought it might be helpful if you're going through something similar. If it helps, it was very tough and painful but manageable and while I felt awful in the midst of it, I felt a million times better just a couple of days later.
@HotCupOfNo sending you hugs and I hope things pick up for you, you've got this! 
@Badlydrawngirly @Ralala totally with you, I've been on an emotional rollercoaster of thinking I'm fine one second and tearing up the next. Take the time you need to recover ❤️
@SuzieDeLaTour @AMS19 I think the the BBT thermometer I just bought is linked with the premom app but I haven't downloaded it as I thought fertility friend was the 'go-to' but maybe I should give it a try, sounds addictive 