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.
If you do know the date of your last period, try the following calculation, called Naegeleâs Rule. Babies have a gestational period of about 280 days, so count back 3 months from the first day of your last period and add 7 more days. Your approximate due date is that day within the next year.f you do know the date of your last period, try the following calculation, called Naegeleâs Rule. Babies have a gestational period of about 280 days, so count back 3 months from the first day of your last period and add 7 more days. Your approximate due date is that day within the next year.