Cervical sweep by midwife?

Ok so I went it to my appointment my obgyn was out so they sent a midwife I asked her if she could do the membrane sweep she says she has to see how my cervix feels so she went in & stuck her fingers all the way up and said I’m 2cm 2 weeks ago my obgyn said I was 3cm so that was confusing and idk it jus didn’t seem like she did anything she didn’t move her fingers around or anything didn’t feel like she “swept” anything lasted about 10 seconds so I’m jus confused like she hadn’t ever done one before … how do your membrane sweep feel?