Mazal tov on the recent birth of your baby!
It is unclear whether the second episode of bleeding was an actual period or a continuation of the postpartum bleeding, as it lasted for six weeks. Even if it was a period that requires observing vesatot, the yom hachodesh and onah benonit occurred during the six weeks you were still bleeding. Therefore you have no further onot to observe until you get your next period.
After your next period you should calculate the yom hachodesh and onah benonit as usual. Since there is doubt regarding the previous episode of bleeding, you will not calculate a yom haflagah based on the interval between this period and the questionable period. Only after the following period would you calculate all three onot.
Please feel free to get back to us with any further questions.
BHatzlacha!