haha bro...u most definately need to stack with something. You'll blow up on dbol dont get me wrong, but a decent amount of it is gonna be water, and post-cycle your guaranteeed to lose a helluva percentange of that, the only thing saving you from losing it ALL is that your androgen receptors are still virgins. And dbol for 6 weeks is rough for a newbie.
here's what your cycle should look like:
week 1-4: dbol 20mg ED
week 1-8: test enanthate 300mg a week
and some sort of anti-e...bigp3's suggestion of .5mg a day of armidex sounds great.
since this is your first cycle, i feel obliged to also tell you that your diet and training better be in check. im assumin your bulkin since you choose a dbol only cycle. eat clean (aka real food, no processed shit with the exception of protein shakes etc.)and eat ALOT. do NOT neglect carbs as many newbie's do when bulkin, they just go crazy with the protein. no need to consume 500g of protein a day, and no carbs. Most of that 500 will end up being used for energy with no carbs. 270-300g protein should be enough figuring your of moderate size, and load up on the carbs, and try to avoid the fat but dont worry bout incidental fat. no biggie. Try to avoid too much cardio, you need all the calories you can get. When training, choose weights that you figure you'll fail somewhere between 6-8 reps, cause your mantra when bulkin is "heavy weights, low reps". Pound the fukk outta your muscles. This is just a general overview reserach up there's alot to learn. And you better be bulkin cause otherwise i wasted all this time typin up this paragraph.

...have funn!