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!
Ovulation usually occurs between 12 and 14 days before your period starts (Fehring et al 2006) . This is an average, so it could be a couple of days earlier or later. For example, say you have a regular 28-day menstrual cycle. Count the first day of your period as day one. Your fertile window is likely to be around days 12 to 17. However, a lot of women have an irregular cycle. If your cycle is irregular, ovulation may occur a week earlier or later from one month to the next (Fehring et al 2006) . Working out your fertile window using your cycle dates alone is an inexact science. This is why learning to spot your body's fertile signs can help.