Postpartum period

My daughter is now 14 months. I didn't get my period until she was 6 months because I breastfed. But it was a terrible period and all of my periods are bad now. And last a whole week. My periods used to last only 3 days. Is this normal? Will my periods go back to normal? Also, I just ended my period about a week or two ago and I'm bleeding again?! For the last 3 days! (But it's very light bleeeding). Obviously I'm gonna have to see a gynecologist but was wondering if anyone had similar experience?