Still pregnant??? UPDATE

So backstory, on Saturday I would’ve bee 4 weeks 5 days. I went on a run, 45 minutes later had insane cramping, followed by a gush of blood. As soon as that happened almost all the pain immediately went away. I only used one thin pad the rest of the day and mold brown spotting the next day, then nothing since. Myself and my doctor agreed it was most likely miscarriage. My last HCG on 1/19 was 150. So, this morning I took a pregnancy test and it’s very dark. Like even darker than when I originally tested. I understand it can take while for HCG to clear your system but i was so early I didn’t think it would take long.

Update: went for an ultrasound. Not only am I still pregnant, there are two! I’m very early so they can only see gestational sacs, I go back on the 8th for follow up. My HCG is now 13,000.