That's funny you took the other side of the "unsure of the safety issue"-- I was going to say I'm pretty sure they're
not safe

And, yes, I had a friend say her baby immediately covered up her ears whenever they did an u/s.

:
There really isn't any conclusive studies to say that u/s are safe in pregnancy. Personally I'd want to see a
long term study done proving the safety of 1st, 2nd and 3rd trimester u/s before I would ever consider doing one on a healthy mom with no issues. I'm not fully against them-- in fact there are many reasons that women do them-- but for me, being in good health, I'd rather watch (and have my midwife watch) my other signs to know when it was indicated to get an u/s.
It's like x-rays and DES (anti nausea pill-- google it)-- we used those things routinely before we knew whether they were safe on growing babies or not. Turns out tons of babies put through this without any solid evidence that they were safe. I'd hate to hear in 50 years that babies subjected to u/s (especially repeat) are more likely to___________. I guess I just need to more evidence to feel good about it. But-- do your research and then follow your gut.
And what about BF???? There are several generations that were told formula feeding was just as good as BF, until we found out that the rates of asthma, diabetes, etc etc are so much higher for FF babies. You never know what future evidence will tell us.....
There are many different sides to this story, and I'm interested to hear from those who have more info, as well.

From what I know about babies, and their delicate development, the first trimester is such a friggin
crucial time for them, that it seems, to me, so weird that this is when "routine" u/s is done. I didn't have one done with DS (altho some days I was
dying to know the gender!) and didn't use a doppler on myself until after 12 weeks just to be sure. If I definetly wanted to have one during my pregnancy, I'd at least wait until the 2nd trimester-- but that's just me.

And I don't plan on having a u/s this pregnancy unless there's a medical reason for me to do so. Let's hope not!
