Short cervix 21 weeks

Just had my anatomy scan at 21 weeks. When I spoke to doctor after she said my cervix was a good length at 3.2, but that when sonographer put a little pressure it was shortening. She said it’s still above 2.5 where she likes to see it but is having me come back in two weeks to make sure it’s not shortening as baby grows.

Anyone been diagnosed with a short cervix and made it to full term? I’m praying it’s not shortening..........