Okay, so since I started my period at the age of 11 (I am now 21) I was always regular, but since January 2017, my periods have been so irregular I don’t know what do to. They would be like 10/15 days late which is quite worrying since I’m sexually active. I know not every woman is the same and we are all different but could something like this just happen out of nothing? Pls send your suggestions through cause I’m freaking out