periods after baby and breastfeeding

So I had Sydney Sept 3rd. Bled for 2wks :-(
No AF till February. I stopped breast feeding mid january.
so AF is crazy irregular

After my first two girls My period came back the next month after I gave birth and they went right back to normal.
So this is just crazy!

I'm going away in June and July and I really want it back to 'normal'
I dont like AF showing whenever she wants and for how ever long she decides to stay for lol

Thanks for reading everyone!
P.S.  I'm ultra *****y. PMS this month has been the worst since starting my period back in 1988
I need an Advil hahaha

* Anyone else with this issue? Whats goin on?*