Check with your dr before doing any Monistat or anything. Any kind of vaginal treatment is safest in the second trimester.
I had the same issue and tested negative for infection. To be on the safe side i did a 1day treatment of monistat. Cleared right up. Ive had discharge and cramping here and there since but im sure its normal:)
It depends on how far along you are. In first trimester, cramping can be normal. The baby is just burrowing in and getting comfy. Ok, not really the baby-- more like the placenta, plus you can expect sharp twinges here and there cause by stretching of the uterus--called round ligament pain. Watery discharge can be normal as well. A lot of women have white watery-white thick discharge. If it has a foul odor, call your OB because that can indicate a vaginal infection.