Echo what other pp have said @PumpkinPatch000 - had the same situ a couple of weeks ago and it was all the things you say; surprising, confusing, devastating - I'm so sorry for your loss.
I would recommend paracetamol, heat and rest while you are still bleeding - with any luck it won't be heavy for long, mine wasn't. Was nervous about having a hot bath but really craving one and DH said go for it, if it's messy we'll deal with it, bless him - but it wasn't at all and it was total heaven, really soothed the cramping and very comforting. I had lots of red meat and spinach to keep iron levels up and have no idea whether it would be advised or not but I had a big glass of red wine (first in a few weeks obviously!) and it was very soothing and gave me a bit of pep! Mentally, just give yourself space to feel what you feel, and hopefully lots of TLC. I cried and raged on and off between being fine and feeling positive - just go with what you need.
Keep calling the EPU if you need reassurance - mine were lovely to me on the phone. They advised bleeding would last 5-7 days (mine was over in 4 but several other ladies I've spoken to on here had spotting for a couple of weeks) and to just sit it out, lots of pads, pain relief when required and to take a HPT in two weeks time. If the HPT is negative then you can try again immediately - although it's hard to know when you ovulate after MC many ladies on here have gone on to conceive a few weeks later, sometimes as little as two weeks! If you've had a negative HPT and you feel up to it then go for it - the only difficulty is in dating a pregnancy in the early weeks without a date for the last menstrual period, but there's no physical reason not to. But if you don't feel up to it yet, take your time! If an HPT is positive after two weeks they suggested I ring again in case it was worth going in to check all was as normal.
Everyone's different and follow what your head and your heart are telling you. For us it was a first try and we caught quickly so we have made our peace with it and are trying again this month. It helped me a lot to gently return to MN boards - there's a lovely supportive thread for ladies trying or thinking about trying or waiting to try again after mc here
www.mumsnet.com/Talk/conception/3143208-TTC-after-pregnancy-loss-Thread-16-New-Year-new-hope-for-all
and there are a few ladies in the same boat on the conception buses, which are more lighthearted (took me a few days to gather my strength to get back on the bus but it is really helping me think positive now!!)
www.mumsnet.com/Talk/conception/3132574-Feb-Bus-Fingers-crossed
www.mumsnet.com/Talk/conception/3157023-March-bus-bfp-s-welcome
Lastly never feel bad about posting, it's why we're all here, and definitely helps not bottling it all up esp when it's hard to talk about IRL. Hope it's over for you soon 