Have you already been feeling the baby moving otherwise? I'm not sure if the baby is up that high at 14 weeks though? I think at 20 weeks is when the uterus has grown to the point of your belly button, and the continues to grow drastically from there. I would double check with your dr at your next appt.
Iv got that too and someone said its thr baby having hiccups
It also is like a twitching/vibrating feeling.
I'm 14.2 weeks to be exact.:)