Momamia, I hope you're able to finance IVF sooner rather than later. What would you be doing for work at a hospital? And I do think you could have Oed on CD16, I just lean slightly towards CD17. I would not be surprised if yiu got a BFP this cycle.
Jenny, when doing E4D, yes you'd BD on CD14 after having an attempt on CD10. Make sure you BD on CD18 as well in case you O later. Maybe on CD22 also.
Pinklady, I agree with everything Pbn3 said, except I personally think exercise should be done 12+w in advance like diet. It would help to have more info about you/DH. Just use the search function to look up things like the LE (low everything) diet, and I suggest reading all the stickied posts in the Gender Swaying and TTC a Girl forums.