Two periods in month of April, no period in May?

Vicki • 🍕
I started my period on time on April 12 and it lasted through the 19th. Then it started again on the 23rd through the 29th and it was both heavy, which was normal for me, but having 2 periods in one month isn't. My period didn't come at all the month of May, now it's June 11th and still no period. What could be the issue?