I would think if it's been normal for you all the other times, then it's probably normal this time too. I'd probably only be concerned if it got heavy or painful. I bleed for a good 6 weeks post birth. Only to then have my period back by 3 months with #1 and 5 months with #2. I too would get little bits and pieces coming away too.. probably just a cleansing thing that the body is doing. But even with blood clots I was told to only worry if it was bigger than a 20c piece.

I'd probably wait til new year, unless it's going to worry you.