complaining of back aches and? stabing pains in her guts. Now what I would like to know is will her periods be irregular at first? like maybe next month she will not get them and maybe the month after she will, please let me know so I can tell her when I see her next. she is not happy about getting her periods. I wouldn't be either and I remember when I first got mine at about 15 it was discusting. My mother was 11 when she first got hers. I was a late starter. I brought her some pads a few weeks ago just to be ready anytime as she was getting discharge and I told her that is a sure sign. and even though she is using them she tells me she needs to go and buy more. I asked her how much blood is she loosing for her to say that and she said it is medium. so what do I tell her about her periods, will they be irregular at first? females only please.