Do you have to bd everyday up to and including ovulation to get pregnant?

Hey ladies me and my hubby have bd the last 2 days on cycle days 9 and 10, early but I am trying something diff. this cycle, hoping that bding everyday through ovulation will work!!! Question is tonight no bding is it ok to skip a night, do you really have to bd everyday?? Honestly already tired from our work day and getting sore. Sorry for the (tmi) there!! Thank you and babydust to all.