oh yay!!! anyone know if this is right??

littlebabyboy · Nov 22nd, 2009, 06:45 AM

ok so i got my bfp on 18th November. My LMP was 20th October. so going by my LMP i am 4 weeks 5 days. however as i have a 31 day cycle (i think) when i get a ticker and put 31 day cycle they put me back to 4 weeks 2 days as my cycle is 3 days longer than the average 28 days. so which am i??? do i not date it from last LMP regardless to cycle length?? thanks!!

cherryglitter · Nov 22nd, 2009, 06:51 AM

Hey hunni,
I don't think you do.. im pretty sure the cycle length has a lot to do with it, because it all depends on when you ovulated. If you have a 31 day cycle, im assuming you ovulate around the 16th day ish?! Where as most women would ovulate around the 14th day.

Which only puts you out about 2 days

xxx

littlebabyboy · Nov 22nd, 2009, 06:57 AM

but why do they always say work from ur LMP??? with my son it worked that way too. i just checked my calculations with him and it counted friom my LMP. My LMP with him was 11/12/07 and my due date was 16/09/08/ and i remember at my 20 week scan the midwife asked me about my cycle length and when i said 31 days she did her calculations and worked out the 16 September??!! and he measured a day ahead too so i dunno???

debgreasby · Nov 22nd, 2009, 07:14 AM

It's all based on "average" cycles... ie 28 day cycle with OV on day 14. Not many of us are like this.
Midwife has gone by LMP date for now and will review after 12 week scan x

Crypto1976 · Nov 22nd, 2009, 07:16 AM

I am going from my ovulation date. X

littlebabyboy · Nov 22nd, 2009, 07:35 AM

thanks girls. i just dunno. with my ds i worked from LMP and didnt think twice about the cycle length and he was always bang on or big for his dates!

bunnyg82 · Nov 22nd, 2009, 07:44 AM

Most calculators I have found use your LMP but then ask for your average cycle length. It's a bit confusing to me as it hasn't really been the same, so I have gone for the average of my cycles which is 30 days, which takes me to a due date of 24th July. The NHS one is a good one http://www.nhs.uk/planners/pregnancy...alculator.aspx

They also have a cool desktop thing so you can keep track on what's happening each week

http://www.nhs.uk/pregnancydesktop/Pages/default.aspx

holywoodmum · Nov 22nd, 2009, 10:10 AM

If you know conception date, it's 38 weeks from then...

Odd Socks · Nov 22nd, 2009, 11:10 AM

i've gone with conception date, as i know when i ovulated, & my cycle was slightly longer than a normal 28 day cycle. my midwife has gone with my lmp though.
xx

kmac625 · Nov 22nd, 2009, 11:13 AM

My mw added one day to my lmp to determine how far along I am, but I think I ov'd a couple days later based on my temps and opk's so I think my due date is 2 days later than she thinks. I'll find out at my first scan I suppose, whenever that's gonna be.

Nov 22nd, 2009, 06:45 AM	#1
littlebabyboy Mum (Mom) Chat Happy BnB Member Join Date: Apr 2008 Posts: 1,477	oh yay!!! anyone know if this is right?? ok so i got my bfp on 18th November. My LMP was 20th October. so going by my LMP i am 4 weeks 5 days. however as i have a 31 day cycle (i think) when i get a ticker and put 31 day cycle they put me back to 4 weeks 2 days as my cycle is 3 days longer than the average 28 days. so which am i??? do i not date it from last LMP regardless to cycle length?? thanks!!

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Nov 22nd, 2009, 06:51 AM	#2
cherryglitter Mum (Mom) BnB Elite Join Date: Apr 2009 Location: Gloucestershire Posts: 12,905	Hey hunni, I don't think you do.. im pretty sure the cycle length has a lot to do with it, because it all depends on when you ovulated. If you have a 31 day cycle, im assuming you ovulate around the 16th day ish?! Where as most women would ovulate around the 14th day. Which only puts you out about 2 days xxx

Status: Offline

Nov 22nd, 2009, 06:57 AM	#3
littlebabyboy Mum (Mom) Chat Happy BnB Member Join Date: Apr 2008 Posts: 1,477	but why do they always say work from ur LMP??? with my son it worked that way too. i just checked my calculations with him and it counted friom my LMP. My LMP with him was 11/12/07 and my due date was 16/09/08/ and i remember at my 20 week scan the midwife asked me about my cycle length and when i said 31 days she did her calculations and worked out the 16 September??!! and he measured a day ahead too so i dunno???

Status: Offline

Nov 22nd, 2009, 07:14 AM	#4
debgreasby Trying to conceive (TTC) BnB Addict Join Date: Aug 2009 Location: Sutton in Ashfield, Notts Posts: 5,561	It's all based on "average" cycles... ie 28 day cycle with OV on day 14. Not many of us are like this. Midwife has gone by LMP date for now and will review after 12 week scan x

Status: Offline

Nov 22nd, 2009, 07:16 AM	#5
Crypto1976 Pregnant (Expecting) Inactive Join Date: Jul 2009 Location: Scotland Posts: 2,820	I am going from my ovulation date. X

Status: Offline

Nov 22nd, 2009, 07:35 AM	#6
littlebabyboy Mum (Mom) Chat Happy BnB Member Join Date: Apr 2008 Posts: 1,477	thanks girls. i just dunno. with my ds i worked from LMP and didnt think twice about the cycle length and he was always bang on or big for his dates!

Status: Offline

Nov 22nd, 2009, 07:44 AM	#7
bunnyg82 Mum (Mom) BnB Addict Join Date: Mar 2009 Posts: 7,538	Most calculators I have found use your LMP but then ask for your average cycle length. It's a bit confusing to me as it hasn't really been the same, so I have gone for the average of my cycles which is 30 days, which takes me to a due date of 24th July. The NHS one is a good one http://www.nhs.uk/planners/pregnancy...alculator.aspx They also have a cool desktop thing so you can keep track on what's happening each week http://www.nhs.uk/pregnancydesktop/Pages/default.aspx

Status: Offline

Nov 22nd, 2009, 10:10 AM	#8
holywoodmum Mum (Mom) BnB Addict Join Date: Nov 2009 Location: Northern Ireland Posts: 3,671	If you know conception date, it's 38 weeks from then...

Status: Offline

Nov 22nd, 2009, 11:10 AM	#9
Odd Socks Mum (Mom) BnB Addict Join Date: May 2009 Location: Manchester, England Posts: 3,433	i've gone with conception date, as i know when i ovulated, & my cycle was slightly longer than a normal 28 day cycle. my midwife has gone with my lmp though. xx

Status: Offline

Nov 22nd, 2009, 11:13 AM	#10
kmac625 Mum (Mom) BnB Addict Join Date: Aug 2009 Location: Toronto, Ontario Canada Posts: 5,310	My mw added one day to my lmp to determine how far along I am, but I think I ov'd a couple days later based on my temps and opk's so I think my due date is 2 days later than she thinks. I'll find out at my first scan I suppose, whenever that's gonna be.

Status: Offline

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