these could be known as braxton kicks ,, ,, the urination would be the extra pressure on the bladder ,, there is many antinatal classes out there ,, which i would recomened ,, and decide for your labour day ,
I wouldn't be concerned about the urination, but be careful about the cramping. If it consists or gets worse I would contact your Dr. just to be safe.
No the baby is more then likely head down by now and the extra pressure on your bladder making you go to the toilet more it's normal :)