Light pink bleeding

Maria

Hi Ladies I am 4 weeks and 5 days went to the bathroom today and when I wiped I had light pink blood on the tissue panic set in and I called my fertility specialist she said drink lots of water and lay down, they prescribed progesterone 200mg for the next 5 days . Light pink blood showed twice after I wiped and now nothing.. has anyone experienced this. I had brown spotting a day before I found out I was pregnant which was 7/3. Thank You