Assuming (oh how everyone laughs!) that I really am in my 5th week of pregnancy. And assuming that I actually did ovulate/get sprogged-up on March 11. And assuming that I’m not a complete idiot, (though this question surely gives the lie to that…)
Am I at 5w3d or 5w2d?
In other words: is the first day of a new pregnancy week 5w0d or 5w1d?
I feel like such an idiot for even having to ask this, but my googling is not giving me a conclusive answer, and since this is a question that I can probably get a hard & fast answer to, despite my inability to get any answers about anything of real import going on internally right now, I really really really want to know…
Any takers?
Totally complicated, I know. I had the same problem. According to this website (http://www.ivf.ca/duedate.php), if you ovulated on March 11, 2009, then you are 5w2d today.
Technically the first day of a new week is 6w1d. Like I reached 9 weeks yesterday, so today is the first day of my 10th week, when I am 9w1d today.
Make any sense?
PS. Sorry if this printed twice.
Without regard to the day you are assuming you ovulated, I think that the first day of a new week of pregnancy _w1d. _w0d would be, in my opinion, the last day of a week of pregnancy. So if you ovulated on March 11 and we’re assuming that’s day 14 of your cycle, then Wednesday 4/1 would have been 5w0d, which would make today 5w2d. Sound reasonable?
😦 My comment didn’t show up. I dont know what happened.
Anyhoo, I agree with Tam. That’s what I was going to say, you are 5w2d today.
I would say 5w 2d too.
Long Answer:
Because of the treatments I was having, I know I ovulated on day 14 (as opposed to day 21 which is normal for me).
So, here we go, try to follow me…
I triggered on day 13 (a Saturday), O’d on day 14 (a Sunday), and egg met sperm by day 15 (a Monday).
So now I always consider the Monday day 0 of the week (as in, I have not yet completed one full day of being pregnant so this is day 0, where by Tuesday I will have finished 1 day of pregnancy – Monday – and I’m now 1 and a half days pregnant on Tuesday).
Still with me?
So this coming Monday I will be 28w0d because the day hasn’t finished yet. Then, on Tuesday I will be 28w1d because I will have finished 28 weeks plus 1 day (Monday) of pregnancy.
Confusing, I know. But dating like this matches up with my OBGYN who just gave me dates based on my LMP (Sept 22). Hope this helps because it sure made my head spin.
Short answer : I think you’re at 5w1d where your suspected O date is on March 11 making your adjusted LMP date Feb 26 (which is the date your OB will use to calculate your due date ~ Dec 3 by the way, yay! even though your cycles are all wonky due the the treatments you’ve been on.)
*phew!*
I thought the first day of a week of pregnancy is 0 days. (ie 5 weeks 0 days)? But I see others don’t think so? ACK!
My vote goes to — end of 5th week is 5w0d. Start of 5th week is 4w1d. My 2 cents… 🙂
I would agree with the above posters, 5w2d. I think the calculations are in the same format as the dpo numbers. Ovulation day is 0, the next day is 1 dpo, etc. so you are 3w2d past ovulation (plus the 2 weeks that accounts for the preovulatory part of a “typical” cycle). yay! nerdiness!