FREAKING OUT!! I think I am miscarrying 😭

I am 4 weeks and 6 days today and have been spotting very very light brown for 3 days and it stopped today and not too bad of cramping. I went in for HCG and progesterone on Thursday and it was 71 hcg and 8.6 progesterone. Doctor said to come in today to test because levels are low. I don’t know what my second test will be but I took a pregnancy test and the light is fainter. I can’t believe I have to wait 24 hours to find out, my heart can’t handle this right now 😭