I just re-read my post. A bit confusing wasn't it. LOL!! I'll see if I can explain it a little bit better.
A 'normal' luteal phase (LP) is 14 days. This is from the day that your egg is released to AF. Your cycle is 33 days (using your ticker) so the last 14 days of that is your LP or the dreaded TWW. So 33 - 14 is 19 days so you, in theory, should ovulate on day 19 of your cycle. So in a long winded way yes you should be BDing in the days leading up to, on and after the 19th just to sure.
Have you heard of fertility friend? It is a website that you can use to help predict ovulation using your temperature, cervix height and feel and your CM. A heap of us on here use it.
I hope that is a little bit clearer for you. If you got any questions just let me know. Feel free to PM too if you would like too.