How do you calculate due date based on ovulation?

ajf2004 · January 2011

When Dr's go by the LMP, you can just count the weeks to todays date and that's how many weeks you are... (the first two weeks are based on ovulating on day 14, right?) My Dr says I ovulated late and pushed by due date back 1 week. How would I be able to determine how many weeks I am based on that? I'm also trying to figure out when I conceived. SOO my LMP was Nov 14 which first gave me a due date of Aug 21 but after a few 1st tri u/s due to problems, it was changed to Aug 26. I'm so confused! I am 9 weeks, so do I count back 7 weeks and ignore the first 2 weeks since we are not going back to LMP. I hope this makes sense.

BTW I know due dates don't mean much, but I am curious to know around when conception happened. thanks!

Kuleama · January 2011

https://www.tubal-reversal.net/pregnancy-due-date.php

Here's an ovulation due date calculator - just make sure to change the selection from LMP to ovulation

augustmomma2011 · January 2011

The link the PP gave you is great. I also ovulated way later than my LMP and I know the exact day I ovulated so I take that day and add two weeks and that's how I know how far along I am.

ajf2004 · January 2011

great, thanks! So is it safe to say based on what the baby measured, then that is when I ovulated?

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How do you calculate due date based on ovulation?

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