I am so sorry, I feel your pain. I had the same problem! Your Dr. can give you a prescription for them that works wonders. WAY better than prep H. Be sure to ask for it. You are not supposed to use it for too long during pregnancy because it has steroids in it, but I only used it for a couple of days here and there and it helped. Afterwards you can use it regularly and they will go away really fast. Also, not sure if you are wanting an epidural or not. I didn't have one with my first two kids but HAD to have one with my 3rd because my blood pressure spiked and they were afraid I might have to have an emergency c-section. So - had the epidural, my blood pressure stayed high but didn't go up any further, and had the baby vaginally. My hemroids were no where near as bad as when I didn't have the epidural. I think because I couldn't push as hard. AND - it didn't make me feel loopy or anything that I thought it would make me feel like. I could feel pressure, but not pain. It was GREAT ~ it wasn't something that I would've done if they hadn't forced me to, but after I was wondering why I refused it for my first 2 deliveries. Good Luck and congrats!
Oh - and get some stool softeners. You can buy the generic kind at target for like $4 and they help - I took one in the a.m. and one in the p.m. My dr. said they were ok to take while prego.