At 6 weeks pregnant, your baby will have grown to the size of a pea, with a heart the size of a poppy seed. Your baby is also developing tiny buds that will method usually provides better images (and therefore more Transvaginal ultrasound of a normal Ultrasound photo of a normal pregnancy at 6 weeks and 1 day of gestation. Gestational sac, yolk sac and fetal pole are all clearly visible. The crown-rump length ...