So I know when my last period date is and with the calculations it says I'm due may 18th.
Then I had my 12th week ultrasound and they said I was at 13 weeks. Pushing up my due date to may 13th.
Then I see the doctor and says my due date is may 19th!
Seriously can I just have some consistency. I know it's just a date and means nothing but I can go around saying I'm due between the 13-19th!
Has this ever happened to anyone?'
pomegranate / 3980 posts
It's so weird and confusing they said I was 13 weeks at my appt today but im actually like 12 weeks 4 days... Maybe they just round up? Lol
grapefruit / 4056 posts
I have had about 4 different due dates floating around, if we went my LMP it would be April 25th, 1st ultrasound said May 5th, 2nd ultrasound said April 30th, 3rd ultrasound said April 29th. OB's office wrote down May 6th ... I just pick one, and I go with May 5th, because the first ultrasound is the most accurate dating method medically.
GOLD / pomelo / 5167 posts
@MsMini: I didn't know that! So May 13th it is 
I wonder if my second ultrasound will give a different date.
grapefruit / 4056 posts
@blushink: Yeah, I am curious to see if they try to change the date at my anatomy scan (20 week ultrasound) on wednesday, because my first 3 ultrasounds were all in the first 13 weeks, and I am measuring big based on the due date from the 1st ultrasound (which was at 7 weeks).
pear / 1852 posts
My dates kept changing too depending on if you use my LMP or the length if my cycles, or my US. I figure, its all within a week, so it doesn't matter much.
apricot / 254 posts
Based on my LMP my due date should have been 3 weeks sooner than what it was. When I went for my dating ultrasound they created my due date based off measurements. So that was the day I went with. Then at another ultrasound they would tell me how I was measuring (ie measuring 12 wks 4days and I was actually 12wks 1day)...they didn't change the actual due date though. However whatever due date your provider gives you it's technically anywhere 2 weeks prior or 2 weeks after.
cantaloupe / 6146 posts
My NP said to trust the 1st ultrasound for dating, Anything after that measuring big or small is just about the relative size of baby/ baby's individual growth patterns starting to come through. Later you measure--more chance the baby is growing at its own rate giving you a different due date. Go with the first one. Use cycle length, not LMP or your due date will be too early.
persimmon / 1150 posts
My date was also all over the place! one date according to my last period and one according to babys size. I just went with a due date week! Heck she wasn't even born in that week anyway!
coconut / 8279 posts
yep! LMP said 12/7, dating ultrasound said 12/15 - so sometime this week, lol
coconut / 8498 posts
My due dates based on ultrasound measurements and LMP are about a week apart. The analytical side of me doesn't like the discrepancy, but I keep trying to tell myself that she probably won't come on either of those dates anyway 
GOLD / wonderful grape / 20289 posts
My on said they only change the due date if it's more than two weeks off. I was two weeks off so it stayed the same. And the baby came exactly on my due date.
kiwi / 718 posts
I have 2 due dates right now but I just tell everyone that I'm due at the end of feb/beginning of march. I'm not too concerned with the actual date b/c I figure baby will come when he or she decides to regardless of the date the doctor told me.
pomegranate / 3706 posts
Yes, I have irregular periods, so basing it on my last cycle would put us 2 weeks further along. Because I charted, I have a guess as to the day I ovulated, putting our due date on April 4th, which is what I had them put on the forms, but since her 11.5 week u/s, baby girl has been measuring 3-5 days ahead of that date, so I just say April 1, or "the beginning of April." It's not super exact anyway.
nectarine / 2039 posts
I was a very good charter, so I am absolutely certain when I ovulated and I calculate based on that. Whatever the doctor says about my date based on LMP or baby size at my ultrasound does not convince me to change my calculated date of due May 10th.
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