You might want to see a doctor and having them run some tests.
Good luck! :)
Not necessarily but the reason for not getting a proper cycle could make it more difficult to fall pregnant, especially if it's not treated.
I guess it depends on what you mean by not getting your cycle like you should. Do you just have long/short cycles or are you not getting your period? If you're only getting your period a few times a year you might want to see a dr and have some blood tests/ultrasounds done