Frustration

We were really hoping that Gracie would arrive before Skylar started school, but that doesn't seem like it's going to happen as he starts on Monday. In fact, it's looking more and more like she's just going to be late.
I haven't progressed at all, my cervix is still closed, I've never had any cramping or braxton-hicks contractions. I'm unfortunately still very comfortable. How awful is that? I'm such a brat, I really do feel great, but I'm so pissed about it! I want to have labor pains already!
I've been trying to walk about an hour a day, maybe that's not enough, but it's stinkin hot outside. I sit on an exercise ball as often as I can instead of a chair or the couch, I don't know if that makes any difference.
I do feel like I've dropped a little bit, but I only get that impression because all of a sudden I got a ton of stretch marks (which do burn) when I've gone so long without them, and I'm not measuring any bigger than I was before the stretch marks, so I'm just guessing that there's more pressure on my lower belly than there was before.
So, I'm just being a whiny pregnant woman when I should really just be grateful that I've had a blissful pregnancy, I'm carrying a healthy baby and I have a wonderfully supportive husband.
I am grateful that we have the opportunity to be parents. I just want that to happen now :(
I'm ok with not having her come early, but I really would like this little child of ours to at least arrive no later than 1 day past her due date because I've got my mom coming, and I don't want my mom's visit to be a waste, I need her help with a newborn, not with the final week of pregnancy, I think I've got the pregnancy thing pretty down pat. Plus, mom doesn't want to see me, she wants to see her grandchild!
So if anyone has any sympathy for me (and I don't blame you if you don't, because I know that I really don't have it bad) please pray that I'll go into labor by or before August 25th.
Thanks.