It is impossible to say. An ultrsound at this stage can only say that your baby is an AVERAGE of 35 and a half weeks. You may have a small full-term baby or a big 33 week baby as babies vary so much in size at this stage.
At this stage, yes the ultrasound can be off by 10 days. Mine was off by ten days the other way, that is I thought I was 18 weeks and the ultrasound said 16 and a half. I knew when I had conceived because my husband had been away on a trip.
You conceived 4 and 1/2 weeks before you wrote this question. Check your calendar to see the exact date.
I don't think you can tell when you conceived from a single HCG test as the normal variation is so wide so the test cannot say definitively you are 5 and one half weeks pregnant. It is much more accurate to have an ultrasound scan and measure the size of the baby. Even then you may be out by 2-3 days either way.
it means it's a boy
You would of just conceived in the last 3-6 days. If you are truly 5 and a half weeks pregnant you would have conceived around 18th June, but there is a wide variation in 'normal' HCG levels so an ultrasound scan can give you a more accurate date. Incidentally, here in Britain very few women have HCG levels done. I have been a midwife since 1979 and at no time over the past 26 years has it been done routinely.
There are 26 weeks in half a year.
6 and a half weeks.
128 weeks 52 weeks in a year26 in half a year =128 weeks
348 weeks in 4 and a half years.
There are 52 weeks in a year, and therefore 26 weeks in a half year.52 + 52 + 26 = 130 weeks in two and a half years.i googled how many weeks are in 2 years and it gave me 104.354914. and i divided it in half and added it to 104.354914. and i got 156.532371
the answer is 6.42857143 weeks
26 weeks, Because there are 7 weeks.