When I became pregnant with my 2nd child, I knew i was pregnant before i could even take the test. My breasts hurt, i was moody and I did NOT want to wear my jeans. My body knew exactly what to do...let it all hang out. Your uterus is swollen and irrritable and lest, will feel more comfortable relaxing, along with the abdominal muscles surrounding it. Chances are, after two kids, you don't have quite the tight abs you did when you first got pregnant. relax and enjoy the fact that someone might actually be able to sympathize with you and see that you are pregnant. I have always said the first three months were the worst and many people, especially men, seem to think a woman is over complaining because they aren't "showing". Please, showing is the smallest part of the misery. It is also joyous, but those first three months are rough. Congradulations! Take care of yourself, relax, eat well, quit any bad habits and take your vitamins.