Is it ok if my period is 17 days apart?

my period is only 17 days apart instead of like 28 or 30...
and that's counting the period like seven of those 17 days I have it so I only have about 10 days off of it..it's really frustrating because it just seems like I have it alll the time.
a lot of my friends have like 25 days with out it and then when they get it, it'll last for like 3 or 4 days..
so should I get it checked out? or is it just an unfortunate cycle I inherited?

dont worry each girl is different.
plus, if you JUST got your period, your cycle doesnt follow a pattern.
consider asking someone you trust like your mom if you still are uncomfortable with it. I guaranttee she'll give better advice than me. :P

well, I got it about five years ago, and it used to be on a once a month schedule but I think it was almost a year ago it started the twice a month thing

you should see the doctor it could be uterine cancer