Pregnant and constipated..is this normal? help?

i been feeling really constipated lately. but the part that worries me is that i feel funny is da morning right above my belly button in my stomach i feel like its real empty inside and alot of gass but it does hurt like a stomach ache. and in my abdomen i have period like cramps on and off and on my left side i get pitchin/period like cramping but just in the morning. i feel so bloated and fat. is this normal bc i dont think constipation would come with cramping and stomach aches.