How far along am I? Confused!!

[Abbey08]

Hi All!! I just recently got my first ever BFP and have a question...

Why do docs go off the 1st day of your LMP (last menstrual period) to decide due date? Because I know I didn’t O til 11/15-11/19ish but according to the estimated due date they gave me (8/8/15) puts me at 5weeks 2 days pregnant and I think I would be more like 3 weeks 2 days. Should I consider myself 3 or 5 weeks pregnant?

1st day of last period: November 1st
App has O day between 11/14-11/20
Average of 32 day cycles
Tested positive: December 5th
Estimated deliver date: August 8, 2015

 

[RaspberryK]

I can't remember why they do that, if you know when you ovulated by a positive opk then I'd go by that date but add 14 days, otherwise I'dgo by lmp however if you have a longer than 28 day cycle then you'll need to take that into account.
Easiest thing to do it look at a due date calculator online that you can put all your info in. It'll only be an estimate until you get a dating scan.
Xx

 

[Abbey08]

I have read on several websites about the add 14 days thing. So does that mean your considered 2 weeks pregnant the day you conceive? Strange!

 

[butterflywolf]

They go with LMP since many women do not know when they ovulate and women know when their LMP was. I'm the same way. With my daughter I ovulated on day 21. When he thought I was 8 weeks I was really only 7w 1d. (implanted early). And same thing with this pregnancy. Went in when he thought I was going to be 7w 3d and in reality I was 6w 4d.

Try not to stress until you get a dating scan. if you know when you for sure ovulated due to a temp change (sorry OPK's) then go with that. Just because you have a positive OPK does not mean you ovulate. Temp change shows that you ovulated. So if you think you ovulated on say Nov 17th, you would be about 5 weeks pregnant. 2 weeks prior to ovulation is counted and then 3 weeks after ovulation.

 

[RaspberryK]

I have read on several websites about the add 14 days thing. So does that mean your considered 2 weeks pregnant the day you conceive? Strange!

Yes that's correct xx