24 weeks, awful pain?

I'm only 24 weeks, but the pains I'm getting are like you would expect at the end of pregnancy.

I have cramps in my lower belly a lot and I'm not sure if I am having BH or not, sometimes I think yes and other times I think not.

My back has been hurting pretty badly for a few weeks also, especially low, right above my butt. The cramps have been happening about the same amount of time. My doctor said it was from stress and told me to take it easier and not bend so much and rest more.

But now for the last few days, I have been experiencing this pain that is almost unbearable. I still have the cramps and back pain. But now I feel like my crotch is so sore, like someone kicked me between the legs. It hurts terribly, even seems like it hurts up inside. Sometimes my legs feel like there is something forcing them apart, like as if I had something between my legs. And my upper inner thighs hurt like I just went horseback riding all day or ran a marathon. They just ache so much. And it hurts like h--- when I try to turn over in bed, like my legs won't move right. And I am having trouble putting on pants because it hurts to lift my leg that high.

I need my DH to help me get dressed, help me in and out of the car, help me up from the couch... I feel like an old lady that can barely move around.

Has anyone else had this?! Is this normal? Am I gonna go into labor too early and possibly lose my baby? I'm really worried. I'm gonna call my doctor first thing in the morning and see if I can get an appointment. But I am just wondering if anyone else has had this and knows what is happening.