So I haven't gotten my period yet and it's been a month and a week. I haven't engaged in sexual activity pertaining to penetration. I've been eating well and trying out stress management techniques, because I read that stress affects hormone levels, which contributes to missing or late periods...I don't understand what's happening. I know I'm not pregnant because I haven't had intercourse with anyone in three months. Should I be concerned?  Has anyone gone through this?