Ultrasound question

[babycrazy42]

Hey girls how many if you knew when you conceived and how far off were your first dating ultrasounds off from that date?

 

[Colleen12589]

I was right on to the day all four times but I knew the exact day I ovulated and the for sure date of conception all 4 times. Sometimes you might be off a few days I you are using OPKs or BD every day. Were your dates different than what you thought?

 

[babycrazy42]

No well idk lol I'm trying to figure out if I ovulated the day I had a crazy amount of ewcm (globs of it) I never had ewcm before, my 8 week ultrasound lined up perfect to that date!

 

[Mild Mango]

I found out I had conceived 3 or 4 days earlier than I thought I did. I wasn't temping or anything while TTC, just tracking my periods on a tracker/fertility app.

But I had suspected I ovulated a bit earlier than usual that month, and it turned out I was right!

 

[mammag]

First ultra sound was spot on to the day. Second was two days behind. But the first was transvaginal and the second was abdominal.

 

[babycrazy42]

Is there supposed to be a difference with transvaginal and abdominal ?

 

[britgirl82]

There is an accepted margin of error of a week on ultrasounds. As long as you're within a week (either way) there's no cause for concern.

 

[littlefishygg]

I 'know' I ovulated on CD 19 as I had a positive opk in the evening of CD 18 after days of negatives but according to my 8 week scan and 12 week scan I conceived on CD 17 which makes no sense to me but I'm sticking with what the scans have all said

 

[babycrazy42]

Thanks I'm just trying to figure out when I might have ovulated! I don't temp and wish I would have, I just saw a crazy amount of ewcm on cd15 and jumped on it and ended being pregnant after a year of trying, wondering if the lack of mucus was the reason

 

[mammag]

Transvaginal is more accurate in the early days.

 

[babycrazy42]

Seems pretty accurate! I had both transvaginal and abdominal