When did pregnancy photos become a 'thing"? Until recently people just took pictures of their normal lives, like trips, visits with friends, and fun activities. If someone was pregnant at the time it was part of the picture but not singled out just for being regnant. If you really, really want to track your pregnancy with photos, be natural about it. Photograph all the new things happening in your life and household: cleaning out the room that will be the nursery, shopping for baby furniture and clothes, Taking a break with a picnic with friends and family. Digital camera picture files will show the date so you cam organize them into a pregnancy timeline in your album.