Help please

I suppose to have started af on the 1 nothing today um having watery cm and a lil creamy cm I don't know what's going on I went to the doctor Tuesday I told him to do a blood test he did only for tsh I take thyroid med he took urine tests which was negative with my first child I took a home pregnancy test at 6 weeks and two days but the second line took for ever to come up went to the doctor same thing took a blood test and it was positive so I was 6 weeks and two days so I was wondering if this could be the case to that I need a blood test the first which was the day I Start af I had light pink the 3,4 brown discharge now nothing but watery creamy discharge