Speculation why Wednesday is Silent during the Holy Week

From the link http://www.jewfaq.org/holidaya.htm
"The day before Pesach is the Fast of the Firstborn, a minor fast for all firstborn males, commemorating the fact that the firstborn Jewish males in Egypt were not killed during the final plague."

During the Holy week, I assume Thursday of the passover week would have been the "Pesach."

My speculation is that since Christ was the first born Jewish male in the family, he would have been fasting on Wednesday.  So if Christ was fasting on Wednesday, I would guess Christ essentially being a Rabbi, Christ would not be preaching on the fasting day

If my guess is correct, it would explain the reason why "Wednesday" of the passover week there is no significant scriptures on Christ. It seemed peculiar that Christ had no discourses, etc on that day.