Huge baby! 😂

Suniia • Hello , my name is Suniia I am 21 and me and my DH is expecting our second child May10th 2016.
So I was told today at my 37+2 prenatal appointment that I'm measuring at 39 and baby is to be about 8lbs! So my midwife (whom I am very grateful for) at my birthing hospital didn't seem to be phased by the baby's weight. Wouldn't it be logical to induce at 39 weeks or possibly before if baby is gaining weight at such rapid speed?