I gave birth to a beautiful baby girl june 28th, and bled for 2 weeks. I stil have not yet gotten my period! its been 13 weeks since i bled after birth. i had unprotected sex one time, and it was the first time i had sex after birth, i was also breastfeeding for 4 weeks, but giving bottled in between! could this be a reason why i have not gotten my period. i breast fed my son for 6 weeks and got my period 2 weeks after. i have a taken a hpt 4 weeks ago, it came up negative so i dont know what to think!