So after giving birth in March, I finally got my period last month. I got my period May 18th. So I was expecting it around the same time for June. I use the app <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Period tracker</a> & it lets me know how many days I'm late & I'm a week late. Could it be because I'm breastfeeding? Is it just irregular? Should I really be worrying a lot?