The best window for newborn photography is usually within the first two weeks after birth—ideally between days 6 and 12. Babies are still very sleepy and flexible then, which makes posing gentle and natural. I prefer shooting mid-morning when the light is soft but bright enough to fill the room without harsh shadows. If you're using a phone, drop the exposure slightly, lock focus on the baby's eyes (or lashes), and avoid filters. To keep a baby asleep, warmth is everything—a quiet room around 80degF and steady white noise works wonders. Parents should avoid upright or unsupported chin poses; they look cute online but require careful spotting for safety.