Hello, I was diagnosed with pneumonia Saturday evening and was given Teva-Moxifloxacin 400mg to take for treatment. My menstrual cycle is like clockwork and always around mid month do I experience the fun. I just went to the bathroom and it looked like there was some pale pinkish/light red coloured blood…do I need to seek medical attention right now? When should I, if not now? What/Where could the source of the bleeding be coming from? Thank you for your help!