I'm really confused about my period?!

I'm really confused about my period?

Well its about 6 days late and i am a virgin. every day the other ovary or somethin hurts, like yeterday it was the right one now its the left today. I'm seriously confused about whats happening, it dont hurt all the time er nothin (i dont know if this has anything 2 do with this but i dont get PMS like i dont hurt before it and i dont get moody) is it medical er what... I've been outside sorta alot this last week but i've been drinkin water. this has never happened b4 other than the fact that alot of the time its a few days late, like 2 or 3 days not more than 4 days late. I'm really worried its something really bad... but i'm only 17 years old so i dono whats goin on... please help me this is keepin me up because i'm worried about it.... and today is the only time i've been worried about it... does this have any effect on this: me and my bf have been havin alot of little fights lately but nothin really bad does that effect this kind of stuff?

1 week ago
ok heres some more info.... when i do have my period often there will be random big thick chunks of dark red stuff(i know disgusting) i didnt pay much attention to it but maybe that has 2 do with this too....

You're still a teenager, so it is normal for your period to be off a day or two. Hormone levels are constantly changing, and with stress (i.e. boyfriend fights), they can go more out of whack and cause you to have a late period or even miss your period. There is definately nothing to worry about, but any other medical reason could be that you have a cyst, which is like a bubbly on your ovary. Most girls get it, and if you're period becomes realy irregular, you can talk to your doctor about getting an ultrasound/bloodtest to check for PCOS (polycystic ovarian syndrom, tons of cysts on the ovaries). If there are cysts, it can easily be fixed with birth control pills, and if necesary, surgery. But honestly, just being a teenager, you go through a lot of stress and are bound to have periods come late or go by as missed. Don't worry, it doesn't sound like anything is actually bad.