|
Early pregnancy
ultrasound findings and pictures
Advanced
Fertility Center of Chicago
Gurnee & Crystal Lake, Illinois
Our IVF Success Rates
Our IVF with Donor Eggs Success Rates
Ultrasound in early
pregnancy: 5.5 weeks from last menstrual period
Transvaginal ultrasound
of a normal pregnancy at 5 weeks 4 days of gestation
Gestational sac (black area inside the white circled area) is seen
The yolk sac (small white circle at upper right of sac) is a source of nutrients for fetus
Fetus is too small to see this early in pregnancy
Ultrasound
of another pregnancy at same gestational age as above, but with identical (monozygotic)
twins
One gestational sac is seen with 2 yolk sacs visible inside it
This results from an early embryo dividing into 2 genetically identical embryos
The vast majority of twins from assisted reproductive technology procedures are not
"identical", but result from implantation of 2 embryos that were the result of
fertilization of 2 different eggs (see image below)
Ultrasound
of a twin pregnancy that resulted from implantation of 2 genetically different
embryos (fraternal twins)
Yolk sacs and fetal poles (the early fetus) are seen in 2 completely separate sacs
This pregnancy is at 6 weeks
Back
to early pregnancy page
Transvaginal ultrasound of a normal pregnancy at 6.5 weeks of
gestation
Transvaginal ultrasound of a normal pregnancy at 8.5 weeks of
gestation
Transvaginal
ultrasound of a normal pregnancy at 12 weeks of gestation
| 
