Your second trimester is from 14 weeks to 27 weeks and six days.
That is the date you use when entering the LMP.
Daily immunoactive and bioactive human chorionic gonadotropin profiles in periimplantation urine samples.
Khambalia AZ, Roberts CL, Nguyen M, Algert CS, Nicholl MC, Morris.Your due date is estimated by adding 280 days (i.e., nine months and seven days) to the first day of your LMP.You can also use this calculator as a sexual escalation dating reverse due date calculator to find out when you became pregnant.Just enter your due date and we will calculate the estimated day of conception.American College of Obstetricians and Gynecologists.Number 9, October 1999 (replaces Technical Bulletin Number 188, January 1994).Only a few women can accurately track the ovulation days and can guess when they have conceived.The EDD can be calculated by adding 266 days to the day of ovulation/fertilization.Am J Obstet Gynecol 1996; 174:ID:8572021 Savitz DA, Terry Jr JW, Dole N, et al: Comparison of pregnancy dating by last menstrual period, ultrasound scanning, and their combination.Sep 4 1993;307(6904 ID:8401014 Ultrasonography in Pregnancy.Conceptional age, menstrual age, and ultrasound age: a second-trimester comparison of pregnancies of known conception date with pregnancies dated from the last menstrual period.The calculation adult contact groups of the estimated due date (EDD) is based on the day of the date of ovulation and fertilization.For parenting tips, tricks and advice you can trust, click here to subscribe to Mother Baby and have the latest issue delivered to your door every month.The sperm can live up to five days, and the ovum for up to 24 hours after being released.The conception calculator will give you an estimated date of the probable time when conception occurred.An estimated due date (EDD) is the best guess for a spontaneous onset of labor.J Clin Endocrinol Metab.
Obstet Gynecol 2008;112: 141944.
To know your pregnancy weeks with this calculation, remember the first day of your last period.