11 DPO

Hey everyone.
This is month 3 of TTC #2 although this is the first month I've had a positive ovulation test since coil removal in March. We never tried to concieve with our first she was a happy surprise so I'm a bit clueless as to how it works, I'm 24 partner is 26. 
When do I test? I have irregular periods so I don't know when I'm due on? I had positive ovulation tests 1st and 2nd June and we 'done the deed' also. What should I be looking out for? When do I test? 
I'm sorry ladies I just need info! Xx