Your portraits are beautifully lit and fortunately don't need much retouching. The only exception I see in your examples is the family piled on top of each other on the ground where the mom appears to be in the shadow a bit more than I'd prefer. She could use a quick swipe of the dodge tool, IMHO. I do tend to spend too much time in post production working to "perfect" each file, but that's me.
The natural beauty of a pregnant woman in a beautiful outdoor backdrop is simply breathtaking! The parallel of a mother about to bring to life into the world and Mother Nature is a powerful one. Disadvantages are that the shoot is weather-dependent and shooting hours are limited to the golden hour of sunrise or sunset (when the quality of natural light is at its best). Reschedules can happen and may trigger the rescheduling of other related appointments (e.g. professional makeup and hair artist, florist, venues, etc.) Remember your sunscreen and bug spray! Be prepared to walk/hike to the location and change outfits outdoors.

We spoke to wedding photographers Christin Berry of Blue Martini Photography in Toledo, Ohio, Jasmine Norris of Jasmine Norris Photography in Lafayette, Indiana, Kelly Vasami of Kelly Vasami Photography in Scarsdale, New York, Nick Gillespie of Blue Bend Photography in Asheville, North Carolina, and David Stephen Kalonick of David Stephen Photography in