It really depends on your body. Usually they say between 32-36 weeks. (Before stretch marks..if you're prone to them..really start to pop up & while you can still move comfortably.). I was able to bundle my maturity pictures and my newborn pictures with the same photographer and got an amazing deal. We did my maturity pics outside and in the lake! Haha.
Around 36weeks! I got mine with my daughter done at 36 weeks and with my twins Im getting them done at 32 weeks since twins tend to come early lol But id say 36-37 weeks but id push for 36