Ovulation ceases during pregnancy - vaginal bleeding during pregnancy - estimate the date of delivery using Nägele’s rule

- Ovulation ceases during pregnancy.

- Any vaginal bleeding during pregnancy should be considered a complication until proven otherwise.

- To estimate the date of delivery using Nägele’s rule, the nurse counts backward 3 months from the first day of the last menstrual period and then adds 7 days to this date.