This is a tricky one as there is something special about all of your babies development stages.  However, if you miss the short window for newborn images or just don’t fancy them, then I recommend waiting until your baby can lift their head when they are on their tummy before coming to visit for photos.  Prior to this stage, they’re very limited in terms of what they can do (I’m not criticising!) and although I have a specially designed pillow that allows them to sit up, until they have good neck control they tend to just slump.  If you wait until they’re a little bit stronger, then you’ll get much more variety in your finished images.