Possible miscarriage?

Bree • I’m 27, married young to a loving man 👨🏾 , Mama to Levi (6)👦🏽 Willow (4)👧🏽 and Theo (2) 👦🏼

So hubs and started trying for our 2nd and I took a pregnancy test a few days ago and hubs said take a pregnancy test Monday (not sure why) but I agreed, anyway, Sunday afternoon and I start bleeding and I like ugh 😑 must’ve been a false positive so I put a tampon in and off we go but I’m am in so much pain and have really intense back back as well as bad nausea and I said to my husband that this is the most pain I’ve ever been in in a long time with my period so 6hrs later we get home and rush to the toilet as I couldn’t change my tampon as we were out, but as I pull it out instead of it being insanely heavy like I always is, it’s actually more mucusy and spotty. Usually first day of my period I have to change my tampon every 2 hours it’s that heavy. And it also wasn’t like a dark red it’s bright red. I have no idea what a miscarriage is expected to be like so just wondering if I am possibly having one or not? Will go to my doctors in the morning but would just like some advice. Thanks x