Super worried… need to vent

I’m 5 weeks 5 days. Yesterday I went for a jog and after I noticed blood in my underwear (about a palm size stain). I got home called an er nurse who assured me as long as I didn’t have cramping, back pain, fever, and heavy bleeding that I was likely ok but she wanted me to follow up with an ob. Since then I’ve been wearing a pad. I’ve had no blood still feel fine but now today it’s brown. I also noticed some discharge maybe..it looks kind of sticky I’m not sure. Anyways I’m just super worried my appointment is in the morning but I just can’t get my mind off of it. I just hope the baby is okay. 😔