29 weeks and FTM ( sorry for the dirty mirror pic)

Tavleen
Hey all!!
Since morning I've been feeling my baby jabbing and puching(or may be kicking) very low today.. Its very near to my female parts and I am feeling it in very short intervals like he is all awake the whole day..(usually sleeps in the day & stays awake at night)..
Also I am not sure if I am feeling light above but My shoulders and rib muscle are relaxed since I woke up in the morning..
Should I be concerned of any chance of preterm labor?
**update**
Its been more than 12 hours that my baby is kicking/punching very very low.
Now Its getting difficult for me to do any daily routine chores like walking or standing in the kitchen and even sitting.
May be baby is uncomfortable. Dont know what to do.getting butt kicked!! Haha!
Did the self check for dilation and was able to feel just one lip (before Today I never felt any lips as my fingers might be smaller) so I am guessing baby has dropped a bit..