Lower abdominal pain

Nikki • I`m 30 engaged to the love of my life! Pregnant with our 1st child!!
I have for a while now been having horrible lower abdominal pain. It gets worse if I stand to long or for a longer period of time or even to bend down to pick some up, it really killing me to lay down like someone is stabbing above my pelvic bone! It's almost like my muscles r ripping apart!!! Yes I'm a FTM n obese. Anyone had this problem???