I had my son 3/11/16 I bled for about to weeks after I had him then about a week or so later I got…

I had my son 3/11/16 I bled for about to weeks after I had him then about a week or so later I got what I think was my period in April on the 18th I believe it lasted about 5 days I haven't gotten my period this month is it normal? to have irregular periods after having your first baby? I'm freaking out.