I had a wax, Basically a full bikini with a bit left at the front so it didn't look completely odd. I just thought it would be strange with a big belly and looking like a 5yo. The hair that was left was crooked though. It did make maintenance after easier and it was good not having the top of my bikini line shaved and it all clippered. The Nurses were relieved they didn't have to do that as it was an emerg c-section and it was one less thing. Getting it done hurt, OMG, and I had had a full bikini done plenty of times before. They do say waxing hurts more when you are pregnant. BEcuase I had to lie sort of on my back, (tried to lie to one sidebut didn't work) I did find I felt dizzy a bit and had to get her to stop and rest. They did warn me beforehand that they had had people go into labour after the wax. Didn't happen to me but after he felt very very low and I thought I may go into labour, I did end up having pre-labour for the next week.
It is up to you how much you get taken off. You could just get a clip and a neaten up. You could buy yourself a bikini trimmer and do it blind, but clip on about number 1 or 2, don't go shorter on otherwise you will end up bald in some spots and could cut yourself.
If you decide to do nothing about the bikini lineit is fine too
Good luck for the birth