first few periods post pregnancy

This is a long post (sorry), I'm looking for info from women in similar situations: I'm breastfeeding my baby but she's been eating solids so my period has returned somewhat. I'm tracking my ovulation cycles with an ovulation test bc my husband and I would like to try for our second (and last) soon. As far as I know, last month was the first time I ovulated since my daughter's birth (just over 6 months ago). Both last month and this month my period has come about a week after ovulation, 8 days after last month & 6 days after this month. Last month it lasted about 3-4 days, this time its nearly gone after only 2 days. I know periods are supposed to come about 2 weeks after ovulation so I wanted to know if anyone out there had similar experiences with their first periods post pregnancy? I will add that I'm not on birth control (never have been) & I've always had 28 day cycles (pre-pregnancy). Implantation bleeding crossed my mind but it's been too much blood for that, but it's also been "thinner" than normal periods (no real clotting). We didn't have any difficulty getting pregnant the first time. We were pregnant the first month of trying. I had a c-section & I want to know opinions of anyone with similar situations before I go running to the doctor to ask what's going on.