I have a home doppler. I am only 14 weeks and a FTM so I haven't even felt flutters yet. Tonight I decided to listen to my little one just because I haven't been feelin well. I was hearing his nice steady heart beat and then a big thud noise. Heard the heart beat again, and another loud static-y noise for a second, then back to the galloping horses. Are these little interruptions him moving around in there?!