6+ mos pacifiers for 5 month baby?

My son is now 5 months, and like always we're running out of the 0-6 month binkys because somehow we lost them... (Like always, they just vanish!) And I've been looking all over for the 0-6 month MAM ones (the only type he really likes) and I'm having a hard time finding them (has to be the clear nipple) but I find the 6+ month ones all over. Can I give him the 6+ month one now and will be be okay with it? He's only a month off.