I am pretty sure I am having one right now. My periods are all pretty consistent in how they look and my PMS, although when they happen is not always when they should but this time I have lots of edomentrial tissue and grey/brown tissue. I would have been 5 weeks at this point. I also had sore swollen breasts, nipple discharge, large veins, dark nipples, crying over spilt milk literally, fatigue that kept me in bed for 20 hours a day for 3 days, hot flashes, dizziness, frequent urination and nausea resulting in vomiting. None of those are my typical PMS symptoms so I'm pretty sure it was from a fertilized egg. I'm sad. On the one hand it means I'm ovulating for sure on the other it's happened before when I was a teenager and once when I was 20 so maybe it's a chronic problem for me. I won't know until we try again. I do know it's typically from a irregularity in the chromosomes but it can also be from thin unterine lining, low hormones, a defect in my luteal phase or infection. I also know however it's sometimes a chronic problem and the doctors never know why in some cases. Of course I could be completely wrong, I didn't test, my doctor is not monitoring my HCG regularly but some things you know. This is something I know. I hope next month will be different. Maybe we can have our own holiday miracle. I'm just looking for a little support.