Later interval?!?

Last time I got my term, it was the second week of January,mine normally ultimate about 4 days. I haven't have it since then. I know I'm not pregnant because I'm not sexually moving. I'm 18 so my perios usually range between 4-5 weeks apart, but its be almost 7 weeks.

Can my activity rank play a part contained by how often and how long my time is? I play hockey 6 times a week and go to the gym within between. But I'm not super skinny (5'4 and 145 lbs)

Could my activity stratum affect the long duration between periods, and the purpose I only catch them for 3-4 days?

If not, what else could it be?
Answers:

What does this mean?

You're right, intensely active women normally have irregular period. If this is of concern to you, taking birth control pills will regulate your cycle and you will know when to expect your period. I swam competitively and have to take the pill starting at age 15 to hold a period at regular intervals. Ask your OB/gyn around it, call for an appointment soon.

Loestrin 20 Birth Control?

yes, the increased flurry has cause a change surrounded by your body and your body just wants to caught up. This will take place on its own or when your activity plane changes put a bet on.