Sorry about the pajamas

I find myself still in my pajamas later and later every day. I got to 4 pm today (time to drive Kylie to dance class) before changing. This is becoming something of a problem and I'm having some serious guilt. I've got lots of good reasons, the pajamas just fit my distorted pregnant figure better being the main one but it's kind of making me feel all frumpy.
The problem starts in the morning when I have a good chance of waking up feeling crummy and often nauseous. I grab some breakfast, take care of any immediate kid issues (their breakfast, clean diapers, etc.) then I tend to curl up in a ball on the couch or the bed for a little while while the kids watch something on TV and I wait for my stomach to settle. Pajamas are nicely conducive to curling and settling.
With all the kids awake it is almost dangerous to get in the shower for even the 10 minutes I have learned to live with. There will be faintly heard shrieking over the sound of the water and I don't dare shut the door all the way or it's just asking for trouble, kind of a Murphy's Law thing. So no shower, no real reason to change clothes...
I get some housework done, chase the kids, then it's time to fix lunch. With my belly sticking out in this awkward shelf there's like a 80% chance I'm going to spill something down my front. So I don't want to be wearing the good maternity blouses because I hate buying maternity clothes. Pajama top with some slight staining seems like a much less bothersome laundry issue than expensive maternity tops made of fabric that always seems to stain more easily and then show stains so much more prominently across stretchy belly fabric...
After lunch I can drive Kylie to kindergarten without being seen outside of the car so I sometimes don't bother changing out of the pj's for that one either. Nap time for Andrew and April comes next and that's about when I can sneak in a shower, handle a few things and sometimes even take a bit of a nap myself. More and more often I just can't get up the energy to do more than flop down and watch Sesame Street with April until we both pass out on the couch and then I wake up to the sound of the school age people returning and demanding snacks, help with homework, and the usual other stuff.
It's getting kind of pathetic. I don't really have a reason to get dressed until just before Jared comes home. It's kind of nice to know I still at least want to be out of my pajamas for my husband but it's also discouraging in that on the days when I have really been miserable, sick, tired, and uncomfortable all day to the point where I didn't bother getting out of the pj's he doesn't notice.
So yeah, frumpy mom is settling in more and more. I've never been a big primper and high-maintenance type but when even the jeans are too much effort I know I'm on the wrong end of a slippery slope. I'm starting to need one of those "mommy makeovers" they give to the women like me.