Short cervix question

Jayme

Had an US at 18+2, showed cervical length 2.9. Had the same with my daughter, unsure if related but she was born at 35+3. The doctor told me no heavy lifting, going to the gym, etc and to come back in 2 weeks for TVUS. What about pelvic rest? She didn't say that so my husband thinks we are in the clear. I am assuming it was lumped into everything else? Of course this question would come up after hours so I can't call until Monday to ask.