Trying My Patience

Adam has started climbing out of his crib every time we put him in it. Yesterday morning and also this morning, he was the one who came and woke me up. When it came time for a nap around noon, he decided he wasn't going to stay in his crib. I cannot even count how many times I went back in there and placed him back in his crib. I never said anything to him, I just picked him up, put him back in the crib, and walked out shutting the door behind me. Every time I did this he would cry hysterically for about a minute before attempting to get out again. I was sitting on a stool outside his door so I could hear him every time he tried. I would just go back in and put him back. After probably half an hour he finally gave up and went to sleep. At this point I was so exhausted. I felt like I had run a marathon so I went and took a little nap. 2 hours later he climbed out and came into my room. I'm fine with him climbing out when he is supposed to be waking up but I just wish he would stay the first time I put him in. This also happened at bedtime last night. Since I am a massive whale, Rusty does the bedtime routine with him. Bath, story, prayers... etc. He only got out twice with Rusty and went right to sleep. At around 2 in the morning I hear things coming from Adam's room and sure enough, here he comes into our room. An hour and a half later, same thing. That time he did stay until 7:30 but I was already soo exhausted from being up most of the night with heartburn and hip pain. What do I do? I really don't think he is ready for the toddler bed. We have one in there but I can't even imagine trying to get him to stay in bed. Sure I could close his door all the way, but then he just knocks on it and yells for us until we go get him. I am also paranoid about all the electrical outlets in his room. He knows how to take the covers off and he has tried sticking things in there. I really am lost here. I don't know what to do! I need something figured out before the baby comes so I can have some sanity!