YOU'RE HAVING A BABY!!!! For 9 whole months your body is doing one of the most remarkable things a human body can do. It is creating a whole other person, tiny toes and a little nose, fingers for reaching. But as I mentioned, this only lasts for 9 months, and the time goes by faster then you might think. Maternity sessions are lovely way to capture your child's life from the moment it began. The best time for these are about at 8 months mark so book your sessions accordingly.