Please help!

MaKayla • 21• Married to my Middle school Sweetheart! • PCOS • due with #1 on 07/01/2020

So I’m 21 weeks 5 days,, I haven’t had any cm come out for maybe the last two-three weeks ... I just went to the bathroom

And had A TON come out... is it normal to go so long without having any and then having so much?? I feel baby almost every single day, she is very active . Should I worry ?