Early ultrasound weeks off dating
Been spotting lightly for almost 2 weeks on and off very light brown when I wipe.
My labs look great (progesterone high and hcg more than doubled. This week we see yolk, fetal pole and heartbeat at 103. I have irregular periods but according to last time we had sex..
Could one show you being 8 weeks a long when your actually 11-12 weeks? The way they determine the age is based on the size in comparision to the average.
Generally they are pretty accurate - I have seen them out no more than a week. They measured my baby on the scan and he/she measures exactly to the dates of my last period, ovulation day and implantation day.
It records high-frequency sound waves that create an image (see Reference 4).
Normally, ultrasounds before until week 4 of pregnancy shows nothing in the uterus and serve no purpose.
Failure to see the heartbeat at this stage may indicate an abnormal pregnancy.