38 weeks and I'm not dilating, is this normal? Does this cause me to be at higher risk for a Cesarean?

According to my doctor and the hospital nurses my cervix is "slammed shut" and " it will take an explosion to get it loose!" This is my first pregnancy, I am very large, carrying a boy, and I just want this big boy to come out! It's very hard for me to walk or stand because majority of my weight has only been gained in my stomach, leaving my little ankles to small and weak to carry all of my upper body. I drank 6 oz of Castor oil Yesterday around 3pm and at around 9pm nothing was going on but i noticed that i Hadn't felt the baby move since i drank the castor oil, so i got worried and went to the hospital to make sure he was okay.( I found out that castor oil can cause fetal distress ) On my way to the hospital i started having some painful contractions every few minutes, and they monitored me and the baby, the baby was fine and moving, and i was having contractions every 2-3 minutes right at the 6 line. I have a complete idiot as a doctor ( I'm not the only one who believes this, seems as if the whole city feels the same way ) and when the hospital called him, he said to send me home because i still am not dilated. So I've been home still having contractions, honestly not as often or painful as last night. But I've read that women's water can break and they can be in labor without dilation. It just seems to me that there could be something that my doctor can do. * And * It's a high possibility that I am farther along than believed by my doctor because I had my menstrual cycle 3 times in one month and that was the month i became pregnant. I was told by the hospital i went to that i had a miscarriage when my 3rd cycle came in that month. I didn't save my paper work or remember the date of when this happened, but i know it was in the end of september. So about 3 weeks later when i found out i was pregnant the doctor just picked Sep. 29th as my conception date and we went from there, saying i was 6weeks. But before he chose my conception date he felt me and said i felt 10 weeks pregnant. So I believe i am farther, yet only by a week or so, its still farther. I'm so over being miserably pregnant because i am never comfortable and i am alone. It's seems so much harder being all alone in a pregnancy, especially my first. Now that i have gone completely off track, anybody have any comments or suggestions, or at least can anybody relate? Thanks!