TTC with PCOD implantation pain and bleeding?

[Kerryjo]

Hey all its been a while since I was on here, but basically since having my son in 2014 I've been told I have PCOD and he chances of me falling pregnant are very slim, anyhow me and my partner have decided to start TTC or at least not using protection, so my last period was the middle of April, they are all over the place and have been since last year so I don't know wen I ovulate, anyhow we first had sex on May 28th and hen again on June 11th, I had some cramp pains this Sunday gone and today a little spotting but its stopped already! Could this be implantation? Or would I have got spotting straight after cramping rather than numerous days after, If it was implantation how long after should I test X