(Closed) How Many Weeks Pregnant Am I?

posted 4 years ago in Pregnancy
Post # 2
1031 posts
Bumble bee
  • Wedding: June 2013

RoseyBee: According to the date of your LMP you are 5w2d. Everyone doesn’t ovulate on exactly CD14 so date of conception/due date could vary by a few days.  You’ll have a better idea at your first ultrasound where they’ll measure the baby. 


ETA: Congrats !!!

Post # 3
2815 posts
Sugar bee
  • Wedding: June 2012

xdaydreams05x:  Ditto this. If you know when you ovulate, and how long your cycles are, it gives a much  more accurate dating measurement than going by LMP alone.

Congrats 🙂

Post # 4
3339 posts
Sugar bee
  • Wedding: April 2013 - Rhode Island

Yeah, my LMP is completely inaccurate because I have 19 day cycles and ovulated on CD8.  This whole pregnancy dating is a confusing mess IMO.  By the time the baby implants, which is usually 6-8 days past ovulation, they consider you 3-4 weeks pregnant.  Something about including the day you ovulate as part of the pregnancy…I don’t know.  I’ve been confused this whole time.  LOL!

Post # 5
381 posts
Helper bee
  • Wedding: May 2013

Christy42213:  It is very confusing! They have a bunch of different terms for what they are calculating. Basically what everyone knows is that you are pregnant for 40 weeks, well that isn’t really the case – it is just easier and a standard for OBs to estimate your due date by counting 40 weeks from LMP. You are clearly not pregnant for the first few weeks in that method. That is standard across the board, so like you said by the time you ovulate you are two weeks, and by the time of implantation you are three-ish. I had an early ultrasound done at 8 weeks to determine how far along I was because I have very irregular cycles (70+ days) so they wanted to confirm. However, that isn’t always the case and they might just take your word for when you ovulate or go based on LMP even though it could be off a week.

Post # 6
252 posts
Helper bee
  • Wedding: April 2014

RoseyBee:  My last LMP was 7 May and I’m due on 11 Feb – we are almost due date twins, however if i use a dd calculator that asks the length of my cycle, it says baby is due on 8 Feb and I am 5 weeks 4 days. It’s a bit confusing

Post # 7
9691 posts
Buzzing Beekeeper
  • Wedding: September 2013

Yeah they use LMP probably because most people know the date of their last period but most don’t know when exactly they ovulated.  So it’s just easier for them.  This assumes a standard cycle though…so when you ovulate, you are already two weeks pregnant.  It’s going by the age of the egg, not from the date of fertilization/ovulation.  Of course, if your cycles are far off from the norm, your due date would be off.

If you get an early ultrasound they can give you a more accurate due date and estimate how many weeks you are.  EDD is just an estimate anyway, a few days difference is really not a big deal in the end.


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