Miscarriage then pregnant right after

Jane • TTC #1
So here's the explanation I believe that I had a very early miscarriage or chemical pregnancy, and got pregnant just a few days after I didn't temp or take a opk I go off of my CM ( I know not reliable) but anyways had bleeding last week Af was suppose to come at 2-28 and the bleeding came on 3-3 and lasted for 2 days.. Then got EWCM 2-3 days after my the bleeding. What do you ladies think ??