Pregnancy calculator when is 2nd trimester

On average, the pregnancy lasts for 40 weeks before delivery. This Convertworld pregnancy calendar can help you to estimate the different stages of the pregnancy. Share Pregnancy calendar Pregnancy or gravidity is the time when an eggcell s is fertilized by a sperm, which then develops into an embryo and subsequently a fetus.

First day of last menstrual period:. Due date:. Average length of cycles days :. Converters by family. Clothing Clothes: dress and suit Hat size Shoe size Shoe size children. Computing Bandwidth Data storage. You've come to the right place! Our illustrated pregnancy calendar is a detailed guide to all the changes taking place in your baby — and in you. Each week of pregnancy includes a description of your baby's development, as well as an explanation of the changes taking place in your body.

You'll also find important medical info that will help keep you and your baby healthy. After you announce your pregnancy, the first question you'll probably be asked is "When are you due? Time of implantation of the conceptus and loss of pregnancy. N Engl J Med. Lohstroh P, et al. Daily immunoactive and bioactive human chorionic gonadotropin profiles in periimplantation urine samples.

Biol Reprod. Cervical insufficiency. The American College of Obstetricians and Gynecologists. Berghella V, et al. Ultrasound Obstet Gynecol ; ACOG practice bulletin. Prevention of Rh D alloimmunization. Number 4, May replaces educational bulletin Number , October Clinical management guidelines for obstetrician-gynecologists. American College of Obstetrics and Gynecology. Int J Gynaecol Obstet. Fetal Lung Maturity. Antepartum fetal surveillance. Institute for Clinical systems Improvement. Routine Prenatal Care.

August Morin L, Lim K. Ultrasound in twin pregnancies. J Obstet Gynaecol Can. Sperling L, Tabor A. Twin pregnancy: the role of ultrasound in management. Acta Obstet Gynecol Scand. Method for estimating due date. Committee Opinion No. Ameri-can College of Obstetricians and Gynecologists. The timing of the "fertile window" in the menstrual cycle: day specific estimates from a prospective study BMJ ; Timing of sexual intercourse in relation to ovulation.

Effects on the probability of conception, survival of the pregnancy, and sex of the baby. PMID Determination of Gestational Age by Ultrasound No. Martin JA, et al.