Open cervix but NOT PREGNANT

Hi mga mommies. I just wanna ask if may nakaranas ng senyo ng open cervix pero hndi buntis. 1-2cm syang open. And parang may nakakapa akong parang pimples around my cervix. Di pa ko nakapagpacheckup kasi wala din budget. Baka may idea po kayo. Thank you. Btw. Im mom of five, having super mild cramps every single day.