Big baby..

Mummies... I am 5 months pregnant and, the exact measure of my baby in my tummy today is suppose to be 30 cm. But my baby is only 18 cm but has 152/125 BPM which means, my baby is active. Kompleto po ako sa pag iinom ng vitamins.. Now my problem is what should I do to make my baby bigger? Thanks for your response po. #TeamFebruary