20 Days left- and only a little frustration

I woke up yesterday at 4 am with pretty strong contractions - I couldn't go back to sleep so I decided to read hoping they would either go away or get stronger. It took about 3 1/2 hours but they started to get faster and stronger - about 10 minutes apart - by the time we left to head to the hospital for our childbirth class they were about 7 minutes apart, so we decided that we weren't going to go to class because getting the house ready and all of the bags ready was more important. We got breakfast and came back to my parents' house. After we ate, Zech went to our house to start cleaning and get the bathroom ready and mom and I went to Meijer to get the needed supplies for the snack back, my go bag, and to bring the baby home. After we finished the bags, mom and I went to the house to help clean - I took a nap while everyone worked on the house. At 3 I woke up and ate a taco for lunch and started paying closer attention to the contractions. They were much closer together and still pretty strong - under 3 minutes for about 45 minutes when Zech's dad really started pushing him to take me in to get checked, hoping that this was really labor and Abigail was coming. After being hooked up to the monitor for a couple of hours they drew some blood because my blood pressure was high while I was sitting up. Everything was good with my labs except that my potassium was a little low. They gave me some oral potassium and by that time - the contractions had pretty much stopped and since there was no change in my cervix - they sent us home. It's getting really frustrating and I'm getting really impatient - I just want to meet this little girl and bring her home and be mommy.