At this stage, your uterus is well above your belly button and you might have started developing an itchy sensation over your tummy as the skin stretches. You might notice - an increase in vaginal discharge and a change in the type of discharge too. It might become watery, mucus-like, or bloody. If you experience any vaginal bleeding or spotting, abdominal pain, menstrual-like cramping, lower back pain; it is understandable that these symptoms might confuse you. But they may just be harmless Braxton Hicks contractions. It's however always better to be safe than sorry, so call your doctor right away if you're experiencing anything unusual. Finally, it's time to know all about preterm labor.