Post pregnancy periods

So I ebf, (exclusively breastfeed) and just started having periods again in April. The first too were pretty normal with a heavy to medium flow and there was just spotting about 2 weeks after the first one. And now this period I'm currently on is super light like almost considered spotting. I've never had a period this light, is that normal? This is my second baby and I started having regular periods about a month after my first one. How long should I expect my periods to be so wacky?