In 2017, Mercury retrogrades four times Mercury Retrograde begins in stubborn Earth sign Taurus until it’s officially over ended on January 8 Mercury Retrograde begins in stubborn Earth sign Taurus In 2017, Mercury retrogrades four times April 9 Mercury Retrograde begins in stubborn Earth sign Taurus April 9 on December 3 In 2017, Mercury retrogrades four times ended on January 8 April 9 FindYourFate April 9