Any thoughts??? Happened to any one else?

Kesha • Mommy of an amazing baby boy born December 2018 😩🙏🏽💙🎄
AF suppose to start today, yesterday I had mild cramps I wasn't worried about because I thought AF was about to start.... Any time my period starts I would feel it... Especially in the cramps but I have no signs of symptoms of AF about to start.. Also my cervix is low and I've been tracking my CM and it's like school glue