Hey there... 
I want to create a belt that can track when a baby kicks in the womb of a to be mother.
is there any sensors that i can use to capture this data and send it to another wireless device??
Thank you
If the belt is elastic, you could use a tension sensor and analyze the tension changes. Maybe also a sound/frequency sensor could to the job. In any case appropriate signal filtering and/or some machine learning algorithmis will be required.
There is a project called Kickbee that does this. Maybe see what they used?