Do you have to get out the birthing pool to have your cervix checked?

[NAR4]

Would really like a water birth this time but have never had one before. Just a couple of questions.

Do you have to be dilated a certain amount before they let you get in? Historically I stay at 2cm for hours and hours and then do the rest all at once.

Do you have to get out to have your cervix checked for how dilated you are?

If baby gets stuck and they think I need an epistomy will I have to get out to deliver the baby?

Do I have to get out for the injection to deliver the placenta and do I stay out to deliver the placenta?

I was climbing in when mw arrived do she checked me quickly then I got in. no more internals. when dd arrived I got out as I felt uncomfortable so we snuggled on sofa instead to wait for cord to stop pulsating and placenta to come.