Hey Doc Its Manana I Am Facing Irregularity In My

Hey doc its manana i am facing irregularity in my monthly terms the cycle is getting bigger from since i am ttc. its been 5 months now i had my cycle of 26 days 2 months ago and a month ago it was 36 days long. Now i m on 34 day and no AF its been cramping since 6 days and now from last 2 days i am discharging white mucous and not very sore but itchy breasts. And my nipples are bigger then usual plus my boobs are heavier too. Am i preg or its AF. I am too scared to test because i want it too be positive so please tell by symptoms