It's fine to just go ahead of breastfeeding him whenever you like! Nurse him to bed, in the middle of the night-as long as it's not every hour, it's probably OK! Trying to put him down to sleep without nursing is just harder-why do it-make life easier!
He's only 14 months, I can *guarantee* you he will be sleeping through the night before you know it-without you doing anything at all-really!
To give you an idea, here was what my son did:
1 year - nurse to sleep and nurse approx 2 times during the night
18 months - nurse to sleep and approx 1 time during the night, with some nights sleeping through
2 years - nurse to night, yep, and sleeping through most nights
All on his own schedule.