I dont know what this is.................?

hi there i just don't know what this could be on monday i smelt a strong smell it was like flower i ask my bf if he would smell that and he said no? and last night i had a tin taste in my mouth and i felt abit sick??? last period 16th of dec i have a 31 day cycle???? and all so i keep getting on and off like a twinge down the left hard side of my uterus? and all so last night i have wet discharge . and now its moist down there??? what could this be hope you can help me many thanks xx