please help new to this

hi im 26 came off the pill in november last year as me and boyfriend decided we wanted to ttc found out in feb i was pregnant but miscarried ever since my periods are different each month im not sure exactly when im ovulating this month tho i bled for 1 day if that and ever since for the past 3 days when been wipeing after going to the toilet there pinkish or brown anyone know what this is