Unique spelling of names

Jakoe

we are expecting a boy end of April and finally agreed on a name. we like 'Micah' but want to do something different with the spelling. either Myka, Mika, or Mica; are these spellings too feminine? does it really matter now a days....our family seems to think so haha and I know you shouldn't let opinions affect your decision but are there any other non traditional Micah's out there?