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!
In an average 28-day menstrual cycle, ovulation typically occurs about 14 days before the start of the next menstrual period. But in most women, ovulation occurs in the four days before or after the midpoint of the menstrual cycle.