Girls, hello everyone. 27 weeks and 3 days... I'm on bed rest, yesterd…

Girls, hello everyone. 27 weeks and 3 days... I'm on bed rest, yesterday from 5 pm onwards, there were sharp pains, the interval varies from 3 to 5-6 minutes, for 30 seconds... At midnight, I went to the doctor, they opened their hands, saying "the cervix is closed, go to sleep", it has been over 12 hours and they still haven't attached themselves, what could this be? Did anyone experience this?