Only if you played in the CHL I believe...not entirely positive though.
Players
drafted from the CHL cannot play in the AHL until they are 20, except:
1) If they have played 4 years of junior already (an extreme rarity; Jason Spezza being the best example.)
2) If they are signed and their CHL team's season is over, they may play the remainder of the season in the AHL.
Players drafted from the NCAA can play in the AHL whenever the team wants them to.
I'm not positive, but I believe that Euros who were
drafted from European leagues, and THEN come over to the CHL, I believe they can play in the AHL at 19 as well, but I need someone to confirm that.