I had my very first menses 6 month pp. That was very little like yours too. 10 month pp I had the super heavy one that I nearly fainted. I guess diff mummy experience differently. But it's normal. Whenever there's menses I'll take my milk booster cos I'm worried milk supply will drop which occurs in many mummy. Maybe you want take note of this when you have your next menses.
Lochia will last for 4-6 weeks and doesn't count as period. If you're breastfeeding exclusively you most likely won't have a period for the next 6 months 😁
Everybody is different, so the time frame varies from one woman to the next. Do consult your gynaecologist when in doubt(: