Spotting 😢

Doc just confirmed pregnancy with a blood test. My levels are low so re take blood test a day later to see if they rise. I always have cramping basically constantly during my first few months of pregnancy. Nothing severe but I definitely remember them from my previous pregnancies. Well today I noticed the cramps a little more and just had veg light light spotting. Only a couple times light strings of blood in cervical mucus when I wipe. We did do the deed today so I’m not sure if it’s from that? Or maybe an early miscarriage 😢 if my calculations are correct implantation happened only 5 days ago. I had pink spotting when I wiped once on that day and assumed implantation bleeding. Anyone have an advice on what this could be? To me it seems like a miscarriage... any thoughts are appreciated! 💕