12 weeks!!

At my almost 12 week appointment my little one was flailing it’s arms and legs all around and even saw it like sucking on its hands/thumbs on the ultrasound. Is this really how active they are at 12 weeks? Last time I saw the little peanut all I saw was the heartbeat. I thought it was cute though. No judgment I’m just curious. Baby B didn’t make it so it was amazing to see how much movement this one had.