Welcome to the second trimester — what many women consider “the fun part.” Your energy is up, and your meals are staying down. Your pregnancy is now a visible fact, so indulge in the occasional daytime nap and take advantage of designated close-in pregnancy parking spaces without feeling guilty. You and your baby are headed into a period of rapid growth now, so hang on and enjoy the ride. Here's a look at what you can look forward to in month 4.