My cycles are getting shorter? What's wrong?

I've always have my periods 27-28 days apart which made it easier to know when I be ovulating. Recently they've been solely 20 days apart. Does anyone know if this means I'm going through menopause? I'm 35 and I thought it be too early.
Answers:

Has this ever happen to any woman during her cycle? *see details*?

you could be but it might just be due 2 a low iron count which u can see in the order of at your doctor because with low iron counts u sometimes come going on for a week-2weeks early on your time of year and also feel weak/lazy most of the time but best bring it checked out asap

Should i be having pains?

you could be. Shorter period could be from a number of things
stress anyone the first thing, redeploy in diet--would not be too alarmed unless continues.

I'm on the Pill, postponed my time of year for one week..?

It very economically could be pre-menopause, there are so oodles things that can effect menstruation it would be hard to make clear to. Stress, illnesses, weight gain/loss and so on. Never too hasty for menopause my mom was menopausal at the age of 32. Consider seeing a doctor lately to be safe.

Anyone on the contraception pill Yasmin? Have you have any positive or negative side effects?

We start what is call perimenopause in our 30's. It is the begining of menopause, you may spot small changes within your body, your period, animation levels, etc. If the females surrounded by your family go through menopause early, you might too.

Does anyone hold any pain relieve suggestions foe fibrocystic breast disease?

Yes it could be peri menopause, sort an appoinment with the doc to discuss any fears or question you have.