Let's talk post baby periods!

So for those of you that nursed and didn't get your period back for quite a while, when you did get it back, how regular was it? With my first son, I got it back 3 months pp, had it again at 4 months pp, and got a positive pregnancy test after missing months 5 and 6. My second son is now turning a year this month. I got my period May 20, and nothing since. So I'm thinking if it'll take 2 missed cycles for a positive again, I should get one this week. Really hoping anyway. BUT, he is still nursing so maybe it's just not back for sure yet??