32 weeks!!!! need advice!!!!!!

I am currently 32 weeks and 3 days. I have a history of preterm labor. I have been taking McKenna shots to stop going early again since 16 weeks. I have pelvic congestion so my pelvic Always hurts and feels like its ripping apart. But in the last week or 2 I have like somethings fixing to drop if that even makes since. I have so much pressure in my stomach that its taking my breathe. Sharp pains all in my stomach. Contractions if I bend over or walk thru walmart. My doctor just says its the pelvic congestion. But its getting worse. I went from having energy last week to feeling extremely week this week. I cant do anything for being worn out, i just feel like my body is giving up on me. The pressure in my stomach is really hurting. Has anybody else ever experience this? Advice please