Due AF yesterday but no sign of her yet. Have POAS tonight but bfn. Lots of cramps, wind and nausea. AF never been so much as an hour late in 3 years of ttc #2. Every 27 days to the hour. My question is - around ov time, just before Xmas, we had lots of stress (a close bereavement and other things), could the stress have delayed ovulation? Hence a delayed period? Or even caused ovulation to skip entirely and I won't get a period at all? Has anyone experienced this?