4 months postpartum.. will my period ever be normal again!

I'm 4 months postpartum now, I got my first real period back in December. But my cycle isn't like it was before at all. I bled twice in January. And my projected period start date for this month was the 14th... I woke up this morning and I started 10 days early. Before baby I was rarely ever early or late. I was always usually exactly 30 days. How long is it going to take for my cycle to be normal again!?