Ooh, there are actually many!
First of all, I wholeheartedly agree with the "massage" of the tummy afterwards!! Why do they call it that?! It's not a massage, it's a form of torture!! LOL! Also, the cramping after the baby's born. With my first, it was really crampy. Second was pretty bad and by the time my third was born, I swore there was another baby in there and I was in labor again!!
I have given birth 4 times (youngest is almost 2) and my brown line is gone!! There's still hope
Ok, I wish someone would have told me that my kids WOULD eventually grow up and my job of SAHM would become lamost obsolete. I mean, I knew it would happen, but it came so fast!! I was unprepared to re-enter the job market. I should have been working on some marketable skills during my time at home with them, so I could have gotten a job once they were in school. I guess the surprise pregnancy delayed that, but still.....
I also wish someone would have told me that Kegels' are VERY important!! Don't wait until your uterus is falling out to take the exercises seriously.
A lady TRIED to tell me that how ever hard having three kids in three years was (two toddlers and a baby), that it would get harder. I nearly choked her at the time, but she was kind of right. It's a different hard, but you think once they are self-sufficient, it's all good. It's just a different kind of stress - activities and running around, friends, teaching responsibility, finding time between said activities to have a life with your husband......ok that last one never changes..LOL!
I wish someone would have told me that it was a "must" to accept or ask for help. I still have that problem. New moms (or ones isolated from family due to geography ;) need to know that people honestly do want to help. Don't think you can do it all on your own. EVERYONE needs help once in awhile. It's not a sign of weakness or that you can't handle it. I get sad when I offer help to people and they never take me up on it. I can only imagine others feel the same. In general, I think we all do want to help each other. Ask for it. Accept it when it comes!!!!
Great post!!!