Common side effects of Depo-Medrol include: 1  nausea, 2  vomiting, 3  heartburn, headache, 4  dizziness, trouble sleeping,  appetite 1  changes, increased sweating, 2  acne, or. injection site reactions (pain, redness, swelling).
Other factors (e.g. stress) can result in ovulation being delayed, until as late as the third or fourth week. However, the way our care providers calculate pregnancy due dates is by assuming ovulation on day 14 of a 28 day cycle. You can already see a major reason why due dates aren't so accurate!
A Honor Society of Nursing (STTI) answered. Ovulation usually takes place about halfway through a normal 28-day menstrual cycle. After ovulation, the body produces high levels of the hormones progesterone and estrogen. The hormones thicken the lining of the uterus in anticipation of a fertilized egg. If no fertilization occurs after ovulation, after about 14 days the lining of the uterus is shed to begin menstruation.