Measuring behind?

ashnewman1 · June 2015

I went for my first ultrasound Tuesday at what I thought was 7w2d based on my LMP. However, the midwife measured me at 5w6d. I did get to see a heartbeat of 111bpm but I can't help but worry as this is my first pregnancy. Is this good, bad, normal?

FreshBakedBrownies · June 2015

Dating based on your lmp can be off by quite a bit, unless you know exactly when you ovulated.

ashnewman1 · June 2015

I honestly don't have a clue when I ovulated. We weren't trying for this baby and I wasn't really tracking ovulation or anything. I'm just trying not to worry about the 10 days off thing.

kayjay44 · June 2015

If you don't know when you ovulated, you probably ovulated late. Are they having you come in for a follow up U/S? The most important thing is that the baby grows as it's supposed to. If they haven't scheduled one and you're still worried, I'd push for one.

SuzieQgoody · June 2015

I had a similar experience and googled loads and it seems to be very common!

ashnewman1 · June 2015

Well seeing that it's common makes me feel much better!

They did not schedule an ultrasound. I told my doctor that my cycles are usually 32-35 days and that my last period before pregnancy was 5 days late. Maybe this has something to do with it?
She didn't seem concerned at all and told me it was nothing to worry about. So I guess I should go with that. I am high risk and have a doctor appointment again on July 7 and July 22. Crossing my fingers and willing to bet that everything looks fine!

rspalding001 · June 2015

The fact that you had a strong heartbeat is a very good sign. I'd try not to worry

PumpkinTi · June 2015

If your cycles are 32-35 days you probably ovulate at cd18-21, they assume o on cd14; so you would measure 4-7 days earlier than where last lmp would put you
If your last cycle was 40 days (35 + 5 days late), you likely o'ed on cd26 - and would measure 12 days earlier than lmp.
Thus, measuring 10 days earlier than last lmp makes sense to me. Does that make sense?

ashnewman1 · June 2015

Yes that makes lots of sense! I am feeling better about it.

Thank you everyone!

chimaerakaren · June 2015

@ashnewman1, the same thing happened to me yesterday at my first ultrasound. According to my LMP only, I should have been 8 weeks but I measured at 7 weeks exactly with a strong heartbeat. I ovulated on CD17/18 and the nurse told me she had absolutely no concerns. Implantation can vary quite a lot too, and can affect the dating process. So, I'm just keeping my fingers crossed until my next appointment on July 10th.

shupertj09 · June 2015

LMP really doesn't tell you anything, I have a longer cycle and didn't ovulate until CD28. You probably just ovulated late. Congrats on the heartbeat, I am not so patiently waiting my firs appointment.

SnurtleJB · June 2015

Had the same thing yesterday! I wS suppose to be 8wk 4 days and measured 7 wk 3 days... Glad to hear it's normal, just bummed to go back a week

ashnewman1 · June 2015

I'm so glad to hear this is all normal and my thoughts and prayers are with you all awaiting your first appointments! I hate going back a week too, but it is just a week after all! I cannot wait to see progress at my next appointment on July 7!

Want a personalized experience?

Measuring behind?

Re: Measuring behind?

Choose Another Board

Search Boards