The best time to schedule your pregnancy session is around 28-34 weeks, when the tummy is nice and round. This will vary with each women – and some women who carry small, or gain little weight may choose to wait until they are 36-38 weeks.You want to come when you feel good, have a nice belly but before the downward venture begins! Other women who are growing a bit more rapidly, may choose to come around 28-32 weeks. The idea is to come when you are nice and comfortable and have a nice round belly. It is best to schedule at least 1-2 weeks in advance.