I'm not sure if it has to do with having to pick up my toddler as well, but starting yesterday-it really hurts! I went to bed last night with my lower back really aching. This morning it's not as bad, but it's only morning.
I have horrible posture, so that doesn't help anything at all. I don't remember my back really hurting until closer to 30 weeks. Maybe around week 25 or so. Maybe it's just a fluke and I moved wrong or something and it will quit hurting in the next few days.
That's not the only thing that feels early. I've been feeling the baby move since I was about 15 weeks pregnant. Starting somewhere between 17 and 18 weeks, we could feel the kicks from the outside! I know for a fact that I was almost 24 weeks along with my first before we could feel him kicking from the outside.
Don't get me wrong, having the baby kick is my favorite part of pregnancy, but it seems early.
For those of you with more than one child, did things like this happen this much earlier with your second?