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!
fertilization happens somewhere between day 1 and day 14 of your cycle depending on the length of your cycle and where you ovulate. ovulation typically is between day 10 and 14. fertilization happens instantly when sperm meets an egg. implantation typically happens 7-10 days after ovulation.