I had a few sweeps in the end...
1st one was at the MW's office at 40 weeks, baby wasn't fully engaged but apparently I was 1cm at the opening of my cervix but not all the way through and my cervix was about 2cms in length still. The MW found my cervix easily and gave me the sweep and honestly I barely felt a thing, it wasn't even as uncomfortable as a smear.
2nd one was with a Dr at the MDAU. I'd gone in with some back pain and as I was 41 weeks so she offered me a stretch and sweep. She told me she could do it or the MW could do it. She told me it'd bloody hurt if she did it but it'd do the job
. She did it in 3 stages with a break between each stage. 1st stage was to have a feel and warm me up ie do what me community MW had done at 40wks. I was still at the same stage 1cm on opening and 2cms in length and baby still not fully engaged. 2nd stage was to use her fingers to stretch open my cervix enough to get 2 fingers all the way through. This was uncomfortable but didn't hurt. 3rd stage was to get her fingers back inside my cervix and to sweep the membranes. She seemed disappointed that it hadn't made me cry and she did insist I'd need to hold someone's hand but it wasn't that bad at all. I had to stay laying down for 20 minutes after as I did feel a bit light headed and I did bleed for a few days after.
3rd one was with a MW at the MDAU at 42 weeks. I my cervix was still open all the way through but had gone from 2cms dilated (thanks to the Drs S&S) back to 1.5cms. So the Dr's S&S hadn't worked. MW did similar to the first sweep and again not even uncomfortable and again didn't work.
The next day I went in for induction and had lots of internals / sweeps over the next two days and they became painful for me once the baby's head was fully engaged and labour started establishing. I do think that the earlier ones hadn't been too bad because I'd been used to having internals, smears and cervical treatments so I know what it feels like. It is a weird feeling having your cervix fiddled with, for me it's the kind of "I want to throw up" feeling that I'd imagine men would get having something down the end of their willies, weird and not nice but not always painful.
Sorry for the essay, remember if you don't want one then you don't have to have one and they don't always work especially if your body and your baby aren't ready.