period?

Faith
My period has been late 14 days and I haven't been sexually active for a few months now but I did start taking some anti anxiety meds and was wondering if that may be causing it to be late? Also I've been getting a few PMS symptoms lately and also feeling a bit out of breath at times. Does this happen to anyone else before their period? I'm slightly concerned now that it's been 14 days even though I haven't been sexually active for a few months. I'd greatly appreciate the comments and information