Late for the first time in a year!

Celia
My cycle has been pretty regular for year now, 6 months ago I came off my progesterone because my cycle was coming regularly on its own, and always on time. Until now, I'm late. I looked at my calendar and have noticed that I haven't had a period since the end of April. I spotted 2 days in April, nothing in May, and one day so far this month. Any recommendations?