Clinical features of Pregnancy
- Amenorrhea (Missed period more than 4 weeks)
- A positive urine pregnancy test.
- Visualization of a gestational sac on pelvic ultrasound.
Quick calculation of your expected due date (EDD)
- Write down the first day of your last menstrual date (LMP).
- Add 7 to the ‘day’
- Minus 3 from the month.
- Add 1 to the year.
If your LMP is on the 10th of July 2009,
your expected due date (EDD) is 17 (10+7) of April (7-3), 2010 (2009+1)
EDD 17th April 2010.
Role of pelvic ultrasound scan in early pregnancy
It is important to have a pelvic ultrasound in the first trimester pregnancy for the following reason:
- To confirm the pregnancy by visualisation of gestational sac.
- To ascertain the location of the pregnancy whether intrauterine or otherwise.
- To determine the number of gestation sac and exclude multiple pregnancy.
- To assess viability by the presence of fetal heart beat.