3 mths ttc

Daily

so me and my bf have been ttc for 3 months now since mirena removal in June. periods are regular just last one was longer than the first. and lighter. I'm on third day of fertile window suppose to ovulate the 20th but having lower abdominal pains and in lower back very mild..and can feel temperature rising and hot flashes..feel bloated and having headaches and been very tired lately...