During the second trimester of pregnancy — from months four to six — you might feel better than you did at first. Now's the time to enjoy your pregnancy!
During the second trimester, your baby might begin to seem more real. Second trimester signs and symptoms might include larger breasts, a growing belly and skin changes. For your baby, the second trimester often marks the ability to move and hear. By week 20, you'll be halfway into your pregnancy.
Regular visits to your health care provider remain important during the second trimester. Tell your health care provider what's on your mind, even if it seems silly or unimportant.(From Mayo Clinic)