So i stopped breastfeeding and got my birthcontrol switched....then i had a period April 8. Then i starting having a light period April 26. Didnt think much of it since it was the first time i had any periods since my may 2015 baby. I thought my body was regulating. Nope....but what should i consider my due date(until i know for sure from the doctor) jan. 13 or jan. 31......im not sure if the second "period" couldve been considered implantation bleeding?