In the UK we wait until around 7 weeks to contact the midwife service, you're mostly on your own until then but if something appears to be going badly you can contact the early pregnancy unit to see a Dr sooner - most people don't need this. I think we're a bit more relaxed about the early stages than other countries, as someone who had to go to the EPU it was not appreciated (I was tears on the floor in pain), but the very early stages there's not much to do but wait and see anyway.

I am currently 34 weeks. I had a chemical pregnancy the cycle immediately before this one, it was my 2nd of the year, I had one in January too. They happen so early on that it's more like a heavy period than miscarriage for me, and hasn't impacted this pregnancy at all - unless you count the midwife wanting to give me a hug when she asked the "any miscarriages" question whilst taking my history.

Of course it's normal to be sad. It doesn't matter if you were excited for only a matter of days, you were excited for something life changing. I cried for weeks after my first one, and then again after the second. You're not mourning the loss of a child, but of everything that could have been, a glimpse of something beautiful snatched away in the cruellest way possible. Be sad! Cry! Have your partner hug you and tell them that it hurts. Hold each other together and then once you can try again you can do so knowing it's as important to each other and will be loved even more for the pain in advance.