"I recently had an ultrasound, the sonographer said that the baby's we…

"I recently had an ultrasound, the sonographer said that the baby's weight is slightly low, but there are no problems with the placenta or umbilical cord. She said to include protein-rich food in my diet because I ate little meat. Today my gynecologist says the weight is normal, as it should be, but for precaution he prescribed actovegin and magnesium B6. Naturally, I ask what if everything is fine, why do they prescribe these pills? He says just in case things will get better. How am I supposed to understand this? Since when does everything okay mean you prescribe medication?"