I'm 30 yrs old, married, and mother of 3. I'm not on birth control and haven't been on it for 2 years. My menstrual cycles average is about 28 days. Me being this late is not normal! I've taken 4 home pregnancy tests and all are negative. I don't have any pregnancy symptoms. I've also gotten a blood test done and that also shows negative. I'm worried as to why I have not started my period. I feel like I've been feeling a little more tired. I'd like to think that's bc my body seems to be out of whack. What's going on? Has anyone experienced this? Please advise. Thank you.