It's a fact that women who feel positive about menstruation have happier periods, they also tend to be better informed so know how to better deal with periods. You've listed your problems, however you haven't said what you've done to find the cause or how you've tried to regulate your periods, and how about inducing your periods so you don't menstruate during holidays? Periods don't stop you from doing anything it's just a matter of how you deal with them so they don't rule your life, you are choosing to suffer from periods and you will continue to suffer unless you do something about it. Here are a pregnancy pregnancy calculator app, through which you easily track your pregnancy week by week.
Irregular periods are often regular but women think that because they don't fit the 28 day average or are a few days out each cycle that they are irregular. Your age can be a big factor because during this time your body is changing, this is normal and may cause irregularity as too will other points in your life such as after pregnancy or leading up to menopause. You're also just out of your teens so you may still be developing, the pituitary gland in charge of starting off your menstrual cycles is also in charge of development, it takes time for the release of hormones in the pituitary gland to get high enough to bring about a regular menstrual cycle. The same goes for other parts of your reproductive system, if not enough of a hormone is being released in one place then it won't trigger off release of another hormone elsewhere. Irregular periods can be perfectly healthy and normal but may also be a sign of something going wrong with your reproductive system which could cause fertility problems if you ever want to get pregnant, so see your doctor to find the cause and seek treatment.
