period@pcos

so my last period was. in april. it is now may im 20 days late. been sexualy active alot but i have pcos and. i was recently on birth control came of. have my last. real period off the pull in april but since i came off. i have had no bleeding at all before i went in birth control pills for my

pcos. it mad me have long periods and periods were i could not stop spoting. but now theres no bleeding at all. is this normal when going off birth. control pills should i take a pregency test. still? can

anybody help me understand?