Karolina Kurkova shares sweet snap of her son Tobin, 11, touching her bump

Hilary Duff shows off her baby bump in a white shirt and leggings as she procrastinates a workout

Pregnant Elsa Hosk shows off her growing baby bump on Instagram: 'This belly is getting real'

Pregnant Kelly Rowland cradles her baby bump as she runs errands in wraparound soft gray jumpsuit