Trigger warning - possible miscarriage-

I posted yesterday that I got a positive pregnancy test, but now I fear I'm miscarrying. I'm bleeding. It's light, and very little on the pad I'm wearing, is it a miscarriage? I haven't miscarried since I was in my teens... I'm really hoping this baby sticks. I do have small clots when I go to the bathroom, but no cramping or pain. Thoughts? I do have an appt Monday for my pregnancy, but Im wondering if I should go to urgent care...