how long of a cycle would this be??

[Rosa20]

SO im trying to figure out if my due date was correct!! Every month i would come on a exzactly a day after the month before!! How long of a cycle would that be!?? 29 days orrr??

[Rosa20]

i know the one they gave me at 17 weeks was way off as i knew i was pregnant when i was about 4 and a half weeks!! They told me at that appt that i wasent due until the 18th of dec!! my doc seems to think i was due today or a few days ago becuase at the beginning when i had my ultrasound done at 13 weeks it matched up with the 8 or tenth!! Sooo im think im due today or within the next few days!! Im still saying im two days over due..but my doc must be pretty confindent right sence i see him again on the 15th and he says if im not gone by then on my own he wants to induce becuase ill be aweek over!! ??

[Avanaar]

I may need some back-up on this one, but your new cycle starts the first day of your period.  So from that day, till you start your next period would be your full cycle.  Mine was usually 32 days or so ...so with a due date calculator, that would put my EDD in Jan.  

Doctors' offices use that little wheel chart and that goes by the "average" 28 day cycle ... so it could be "off" for most women.  According to my doc and her wheel chart, my EDD is 12/31 ... the one I calculated with my 32 day cycle was 1/8/09 ...so there's a week's difference.

From what I've read on here, the earlier ultrasounds are usually the most accurate ones.  But I never had an early ultrasound, so I have no idea.  =D  At my one and only ultrasound the baby was measuring about a week ahead of my EDD according to the doc.  

[Grandmatobe]

Using the basic formula (go back three months and add a week), it would make your due date December 11-12.  Having said that, if your cycle was running a little longer (more than 30 days), your date could be a bit later.

What date did they give you at the 17 week u/s?

[Rosa20]

my last menstural period was march 4th! or 5th i know it was one of thoes....but always coming on a day later each month would make it how long of a cyale and make me due when?

[Grandmatobe]

What was the date of your LMP?  An earlier ultrasound would have been more accurate than at 17 weeks.

[Rosa20]

btw my ultrasound was the same as my last mentural period..but i got a different due date at my 17 week ultrasound!!  The earlier one is the right one..correct??