You pick your colors and can even have it monogrammed. You can look presentable for photos after. i cant imagine caring but it could be cute for the next day when visitors come -- especially if baby matches!
Know the Sex of Baby at Ultrasound! Location of placenta boys had placenta on right side of uterus at 6 week ultrasound. of girls was on left. Method considered "highly reliable" in determining gender within first few weeks of pregnancy.