TTC problems

Kirstyn
Tomorrow's the day I have to take the pregnancy test the nurse gave me and I'm hoping for a bfp but I have a feeling it won't be! 
I'm finding it hard ttc when I don't know when I'm ovulating! I've had 3 periods in the last 5 years and since coming off the pill 4 weeks ago...nothing! It's starting to get to me now and I know it shouldn't be. All I want is for my test to be positive or for af to start soon. And then I know where I stand and can then take things from there! 
Let's see what tomorrow brings