Hellobee Boards Topic: Does your due date change if you know the exact date of conception?

Hellobee Boards Topic: Does your due date change if you know the exact date of conception? https://boards.hellobee.com/ Pregnancy, Baby and Parenting blog, by Hellobee en Thu, 16 Apr 2026 15:43:13 +0000 Rosie Girl on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-277537 Fri, 31 Aug 2012 02:35:06 +0000 Rosie Girl 277537@https://boards.hellobee.com/ My dr went off of last missed period, even though I knew the date we BD'd. After my US's though, the date changed due to how baby was measuring. howjoyful on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-277519 Fri, 31 Aug 2012 01:37:16 +0000 howjoyful 277519@https://boards.hellobee.com/ I know the exact day of conception but the doctor based it on my last cycle and ultrasound, both are 2 days before my "real" conception day. Either way they are super close together =] birdofafeather on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-277514 Fri, 31 Aug 2012 01:27:45 +0000 birdofafeather 277514@https://boards.hellobee.com/ Mine went by the dating ultrasound because I was measuring so small compared to what my LMP should have showed. Luckily I was charting and my O date matched up exactly with the dating U/S date so having the EDD "moved" back 3 weeks wasn't surprising! (yep, I was having super long cycles!!) SAHM0811 on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-277412 Thu, 30 Aug 2012 23:03:53 +0000 SAHM0811 277412@https://boards.hellobee.com/ Since I temped and charted for #2, and my OB knows me pretty well, we went with my O/conception date... My early dating ultrasounds showed the same EDD with my date, not LMP's! Andrea on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276656 Thu, 30 Aug 2012 18:07:20 +0000 Andrea 276656@https://boards.hellobee.com/ @leelee: I am due at the end of Dec/early Jan so I don't mind going late if it comes to that to get further away from the holidays. Otherwise, I can see how that is annoying! leelee on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276609 Thu, 30 Aug 2012 17:46:17 +0000 leelee 276609@https://boards.hellobee.com/ @Andrea: same here! Course it was really annoying when DR said I couldn't be induced until 39 weeks and went by the LMP. The LMP date fell on a weekend so it delayed my induction several extra days. Running Elley on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276528 Thu, 30 Aug 2012 16:24:32 +0000 Running Elley 276528@https://boards.hellobee.com/ Mine used my date (I know the exact date too) combined with the first U/S info (which was right on track with my date). rattles on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276510 Thu, 30 Aug 2012 16:10:11 +0000 rattles 276510@https://boards.hellobee.com/ Mine used my LMP, even though I knew it was two days off. He's never made any comment or adjustment based on ultrasounds. MsMini on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276456 Thu, 30 Aug 2012 15:30:59 +0000 MsMini 276456@https://boards.hellobee.com/ @oliviaoblivia: I was induced on mu MIL's birthday, and was crossing my fingers all day LO would wait until the next day (my sisters birthday) to be born! I had my c-section and he was born at 19 minutes after midnight *whew* Periwinkle on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276431 Thu, 30 Aug 2012 15:16:07 +0000 Periwinkle 276431@https://boards.hellobee.com/ I was pretty sure of my exact date but my doctor told me that she always works off of LMP date to determine the due date. That and watching the growth through ultrasound throughout the pregnancy. I am curious to see if baby will be born closer to the EDD the doctor provided or a date that might be closer to what I think it might be based on conception date! MamaMoose on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276340 Thu, 30 Aug 2012 14:31:28 +0000 MamaMoose 276340@https://boards.hellobee.com/ My doc set my DD based on my first ultrasound. All through my 1st trimester my ultrasounds (all 4 of them thanks to bleeding!) continued to show the same date of 11/25. Rubies on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276334 Thu, 30 Aug 2012 14:29:09 +0000 Rubies 276334@https://boards.hellobee.com/ @oliviaoblivia: LOL!!!!!! oliviaoblivia on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276330 Thu, 30 Aug 2012 14:25:10 +0000 oliviaoblivia 276330@https://boards.hellobee.com/ My exact date and my LMP date are a day apart, but the LMP day is my MIL's birthday and I refuse to accept it as my due date. Andrea on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276308 Thu, 30 Aug 2012 14:14:24 +0000 Andrea 276308@https://boards.hellobee.com/ I know the date but my doc is using my LMP. On my ultrasounds, I am measuring according to my date but my doc is still using LMP since the difference is only 3 days. autumnlove on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276304 Thu, 30 Aug 2012 14:12:24 +0000 autumnlove 276304@https://boards.hellobee.com/ @chopsuey119: Sad that I know the exact date! :-P chopsuey on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276292 Thu, 30 Aug 2012 14:05:48 +0000 chopsuey 276292@https://boards.hellobee.com/ I knew when I conceived (I had a longer than usual cycle). That info + first ultrasound determined my EDD. MsLipGloss on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276288 Thu, 30 Aug 2012 14:04:02 +0000 MsLipGloss 276288@https://boards.hellobee.com/ If the difference is less than 1 week, your Doc will likely use your LMP (mine does). I know the exact date and it makes a 4 day difference (sooner) in due date calculation as compared to using my LMP, but my Doc still goes by LMP. autumnlove on "Does your due date change if you know the exact date of conception?" https://boards.hellobee.com/topic/does-your-due-date-change-if-you-know-the-exact-date-of-conception#post-276284 Thu, 30 Aug 2012 14:00:38 +0000 autumnlove 276284@https://boards.hellobee.com/ Or will my doctor still use last menstrual period start date?