With short cycles like that, it's likely that if she ever did conceive, her luteal phase is not long enough to support a pregnancy.
I would suggest to her to get the book "Taking charge of your Fertility" read it, try the things in there to get her cycle lengthened, and start charting either temps, CM or both so she knows when she ovulates (coupled with the OPK she's gonna try) and so she knows how long her luteal phase is.
If she has a leuteal phase defect, having a couple months of charting under her belt will allow her to be quite well armed when/or if she seeks fertility treatment.
This coming from another short cycle gal (though mine are 24 days not 14!)
