L.,
I'm so proud of you for choosing a home birth! First and foremost, women have been having births at home, in the field, wherever, for all of the history of mankind... until the 19th and 20th centuries, when doctors started getting in on the action. This was not a trend for the better, IMHO, in the cases of women with normal, uncomplicated pregnancies. Our bodies were DESIGNED to do this. Work WITH your body, FEEL the surges (do not ever even think the word "pain" but rather "pressure" or "power" or "discomfort"). Your midwife had to train extensively and attend hundreds of births in order to be qualified to do this for a living. She knows what she is doing, and most likely, will have a backup midwife in attendance as well.
When I got pregnant in 2004 w/my 1st son, I wanted a total hospital experience... then I read "Gentle Birth Choices" and did a complete mental 180! My husband was freaked out because I'm a total "pain wimp" and I had suddenly opted for a birth center birth, with a team of midwives. It's the 2nd best decision I've ever made. The entire prenatal process was great, as was the birth center experience (I delivered on a birthing stool 75 min. after I arrived). The best decision (okay, after choosing my husband), was to have a home birth with my 2nd son in 2006 (my birth center had closed due to a change in staff/ownership). I had some doubts/worries because my placenta was still low at 34 weeks, but with lots of prayer, it moved up 10cm by week 36 and all was good. We went with a home birth and a team of midwives (mine was on vacation that day(!) but her two student midwives and her backup attended, along with HER backup). So there were two licensed and two practicing midwives on hand. Both my MIL and my mom were present, along with my husband, 17 mo old son, and my two best friends (one was there as a baby sitter, the other arrived after the birth).
When my mom arrived, she wasn't sure I was allowed to have anyone in my room because everything was so quiet and peaceful. An asst. MW came out and invited her into the room and Mom was again amazed by how peaceful and calm I was. The entire atmosphere was one of deep respect for me and my baby and the rest of my family. They rarely spoke, and then only in low tones. The primary midwife attended me directly; the others took care of various preparations and waited on me and my husband (e.g., brought us food/drink, extra pillows, the telephone, took photos, etc.). Mom got to witness the actual birth and when it was all over, her comment was, "if I could have children again, I'd do it at home. That was amazing. THAT is how birth should be." Mom has 4 children, I'm the oldest) and the 3rd of whom was born in a hospital in 1979 and suffered severe birth defects solely because the doctor did not believe the EFM was giving a correct reading. He delayed a C.S. and so my baby brother was born severely mentally retarded and physically handicapped. He died a week after his 3rd birthday of pnemonia. Mom was 33 at the time and had wanted "the best hospital" because of her "advanced age." That plan cost my brother his life due to a doctor's incorrect "gut feeling." So for my mom to have been through 4 hospital births (2 natural, 2 CS), and to see what she saw, that's saying a lot. The funny thing is, after my 1st son was born, she told me she'd never realized I'd never seen a single doctor even once throughout the entire pregnancy--she thought I was only using a midwife for the birth, not the prenatal side. Silly mom. :)
What I am trying to say is, fears are natural, for yourself and for your child. But what YOU BELIEVE is probably a stronger determinant of the outcome than anything else. If you positively program yourself, then you'll get what you want. I determined when I was 10 weeks along that I wanted a 6 hour labor, in a quiet, dimly list room, using a birthing pool. Well, labor went so fast I missed getting into the pool--I had to push after one leg got wet (only I thought I needed to poop, so I got out... then I opted for the birth stool instead of the jacuzzi, which I now regret a little).
Birthing at home was the most incredibly peaceful, empowering experience... I can't explain it. Nothing was so wonderful as not having to get in a car during labor. I've never been in a hospital as a patient and had no desire to feel treated as if I had an illness when I was pregnant, and the various midwives I had with each child were just so supportive. I know if you discuss your fears and talk openly with her/them, you will find yourself feeling similarly empowered. You've come this far... BELIEVE IN YOURSELF!