lvl 10+ to-be-pirates hp/mp

So, theres lots of event quests starting soon, and I wouldn't mind my lvl 10 to-be-pirate beginner to get those quests in his quest log, but doing quests give exp, and exp lvls up characters.. My question is, will I be losing hp/mp on each lvl up as a beginner that could have been a lvl as a pirate?

Well, I believe Pirates have HP increase, or something of the sort, and getting past the level 10 starting could make HP/MP lower. You'd be reimbursed the points, but not the levels with the skills. And pre-pirate quests dont have anything really to do with the adv.