I prefer no hair down there so am used to shaving very regularly (like every 2-3 days while in the shower). I'm sticking with shaving. I'm only 29 weeks but as the above poster said, this is done purely on feel now as I can't see lol.
But if your skin is sensitive, try using oil to shave with! It's so moisturising and makes the razor glide over your skin so helps avoid itchy shaving rashes. I always use oil. You can literally use any oil, I started using olive oil. But now I use a mix of grape seed / sweet almond oil with a drop of lemon balm essential oil which makes it smell lovely. When your skin is wet just use a small amount of oil (like 5 or 10p size per leg or for your private parts), massage it in to your skin and just shave. The razor glides better and plus as the oil is water resistant, when you get out any excess oil is soaked in to your skin and makes it really smooth and soft.
Just two warnings...... obviously if doing it in the shower you need to be careful as if it gets on the bath it can be slippy. And if using on your legs and it's sunny outside, make sure you take time to wash off any excess oil using shower gel before going in the sun. I completely forgot that once and ended up with horribly sunburnt legs!!