Hi and welcome. During the teen years it is very common to be irregular. Not having a period is actually a long cycle. (not skipping your period and starting a new cycle). If you go through a third month, tell your mom. Not long after that, it might be wise to be checked by a doctor just to be safe. But again, irregularity is very common with teenagers.
Hm, were you sexually active and had unprotected sex? Pregnancy happens and not all girls get symptoms in the first trimester. You need to take a test if you had unprotected sex to rule that out hon.
PCOS is polycystic ovarian syndrome. It means your ovaries have lots of cysts.
Thanks but i'm a 15 yr old and i had a regular cycle before. Is it still normal for my cycle to be irregular now?
Yes, you are a young teen and irregularity is the norm for all of the teen years. Even if you were once regular. At any time ANY woman can have irregular cycles due to various things going on in their life or with their bodies.
BUT, are you sexually active?