Irregular heartbeats

11 weeks along.

So all stinking day long I've been having irregular heartbeats. It feels like the heartbeat goes into slow motion, then like thumps hard and then goes back to normal rythm. That's the only way I know to explain it. It happens I'd say almost every 15 minutes, and it doesn't hurt. Just a little annoying. Anyone experiencing something similar? I am under stress, if that makes a difference.