compressed vein 33 wks

Jessica
Just went to ER Bc my left leg is twice the size of my right leg. After ultrasound, they said baby is compressing my iliac vein & blood is pooling into my leg. He said it's time to have the baby. But I can wait til Monday & see my dr, they sent scan to him. Never heard of this! Cant I just stand on my head for awhile & get her off my vein?!