I go to the store and after my lower belly and my upper thighs are really sore. I have to sit down the rest of the day. I'm guessing this is normal? My belly is getting a lot bigger and babies are moving around like crazy too. I wasn't this sore with my previous pregnancies till 7months and after. I don't really think I'm doing much to "over due it" but my body tells me different. I have a 10year old and a 3 year old and I dont get much help. Dh works long days and my oldest tries to help as much as she can but its not always enough.