Of the weight loss surgeries currently available, gastric sleeve, or sleeve gastrectomy, is a safe choice with less side effects than other types that transitions well into later surgeries if need be. But how does this popular procedure work? Gastric Sleeve Basics. A sleeve gastrectomy is performed laparoscopically using a small incision.
How to Calculate Gestational Age. 1  Find the date of the first day of your last menstrual period on a calendar. 2  Count the number of full weeks that have passed from the date in Step #1 to today's date. For example, if your last menstrual period started on July 1st and today's date is August 1st, the gestational age is 4 weeks.
How Many Weeks Pregnant Am I? â Pregnancy Calculator. This pregnancy calculator works out the due date of your baby. Simply enter the first day of your last menstrual period and click the Calculate button. Along with the due date, it also estimates the conception date and the gestational age (or how many weeks pregnant you are). Note: The calculations provided are only estimates based on averages and should be treated as such.