Another miscarriage? I'm kinda freaking out

I got a bfp on Tuesday when AF was 2 days late. Started spotting this early this morning. Light cramping all day yesterday & got a little worse on and off through the day today. then I passed a clot a little bigger than a quarter late tonight. I would have been only 4 weeks 5 days, does it count?

I have a 20 month old & had a miscarriage almost a year ago. Been ttc for a while and finally got a bfp. 😢