Accurate early ultrasounds dating pregnancy Cam chat sexy girls philippines
Our 1st baby measured within 5 days thru the entire pregnancy, and that was as early as 8 weeks and as late as 26!
Not very accurate yet, your best bet is to wait until about 20 weeks to get a accurate ultrasound Ultrasounds are always most accurate in the first trimester of pregnancy, within about 3-5 days, in the second usually off by 7-10 days after 20 weeks could be off by 2 weeks and in the third it could even be as much as 3 weeks!
There is no proved data that ultrasounds are hazardous to fetus.
However, in routine practice, three ultrasounds are done one in each trimester of pregnancy.
A registered nurse with more than 25 years of experience in oncology, labor/delivery, neonatal intensive care, infertility and ophthalmology, Sharon Perkins has also coauthored and edited numerous health books for the Wiley "Dummies" series.
Before the advent of routine ultrasound in pregnancy, medical personnel estimated a baby’s due date by the date of the last menstrual period and by feeling the uterus and determining the size to see if it matched the given due date.
With transvaginal ultrasound, checking for embryonic development known to occur within a certain time frame more accurately dates a pregnancy.
A yolk sac, the early source of nutrients for the embryo is seen around 5.5 to 6 weeks.
The embryo still can’t be seen at all at this early stage.