Apparently fresh pineapple has an enzyme (bromelaine?) that can help with implantation. It's an anti-inflamatory \. It may also cause some uterine contractions... so the consensus seems to be to take it right after O for a few days but not too close to when you would expect af. You could research it a bit. There must be some threads on it here. I have pineapple when I think of it and they look good. I had a little this cycle.
And I take baby aspirin after O. You might want to do more research about this. I'm only taking 1/2 of a tablet a day (who knows if that even does anything). It thins the blood and helps with blood flow.
I also avoid caffeine.
There are some things I do and avoid because I am paranoid and a little crazy. I wont' list them here!
I was trying to think of other post-O ideas for myself. Keep busy. Keep positive. Good luck!