Please lady's help me!

I'm 16 almost 17 years old (I am sexual active) the last week my body has been producing a lot of discharge. Everytime I touch myself or even go to the bathroom I am always wet and its in my underwear.. What? Why is this happening? I haven't had sex in over a month and I've gotten my period since then...but I'm scared that my boyfriend could of touched his pre-cum and then later touched me right after. Please help... Why is my body producing this much wet slimey discharge