While there is no way to know exactly when your first period will start, there may be signs: bloating, cramps, pimples, sore breasts, or fatigue. However, this doesn’t happen for everyone. It’s a good idea to carry a pad, a tampon, or period underwear in your bag to help you feel more prepared for when your first period comes.
Having said that, the average age for a first period is around 12, but the truth is, it can happen anywhere between ages 9 and 15. Try to remember that every body is different, so don’t stress if your timing is slightly earlier or later.