Boys first names

Kim • Excitedly expecting our first in early March 2016 after 2-1/2 years of trying. 2 different doctors and a diagnosis of PCOS.
We are waiting to find out the sex of the baby until birth. Girls names dont see so hard. We are having issues with picking a boys name...or even coming up with one we like. We want to use Vincent as a middle name. We also like names that aren't too popular or common. Any help is appreciated.