If you have went to the doctor and they gave you a due date then it is right. They go off what you tell them.
You must have given them two different guesses on your last period date. But the hospital would be more accurate.
Assuming she is qualified and experienced at her job she is probably right. However the ultrasound is not 100% accurate.
The ultrasound at 18 weeks is about 90 to 95 percent accurate. It there is a flat place between the legs it means it is a girl if there is something hanging it means it is a boy.
31st March or thereabouts
They are accurate within 2 or 3 days. But this does not mean that you will have the baby on your due date. Babies can be born any time between 37 and 42 weeks. That is what midwives are taught anyway. With my first my ultrasound said I was due 10 days after my period date but my husband had been away on a trip form the day after conception! Second time around the ultrasound agreed completely, and showed twins. (now 16) == Your last known period date or the date of conception is a better predictor....as all babies are different & you may have an extrememly large or an extremely small baby for it's gestational age, and when compared against babies in the "norm" the due date could be way off.
Yes, I was on my menstrual cycle. I informed the tech and he said that it could still be done.
Well we just went to see the doctor about my fiance who according to her last period should be roughly 16 weeks along. The doctor said she was showing signs of being more like 20 weeks. My fiance's last period was late and light, and on further thought could quite possibly have been a false one. The doctor said when we go back for the ultrasound next month that we would be able to tell more accurately what the actual age was.
The ultrasound dating has excellent and precise estimation of gestation especially if done in the first trimester (first 12 weeks). After 12 weeks, its accuracy goes down. However, compared to dating according to menstrual cycle, the ultrasound would be more accurate.
my ultrasound said that my last period was nov25 could it be right
I think all ultrasounds these days are pretty accurate. If you have doubt you could always go to another clinic for a second opioion. Good luck
Roughly Wednesday February 13th 2008
I think this is what you mean. For example. On 28th December the ultrasound said you were 8 weeks pregnant, then on 25th January it said you were 12 weeks pregnant. This would be accurate to within 4-5 days each time.