Baby Name Poll

I recently fell in love with the name Declan but for a girl not a boy. The only problem is I am confused on the pronunciation of Declan. My whole family and I think it is (Deck-Lyn) but after going through and reading these polls I am not so sure I am pronouncing it right. Thoughts on how you think it is pronounced. I don’t know the sex but I am getting induced Saturday. So I want to have names for each gender already picked out. If I have a girl and it ends up being pronounced Deck-lyn than that will be her first name and her middle name will be Sophia/Sofia which I don’t know what way I wanna spell it. If I have a boy my husband picked out the names out they are Brantley Cruz or Bentley Cruz. Please help me in figuring up how to pronounce Declan and how I should spell Sophia if its a girl and which is boys name is the best. Our sweet little one will be joining Weston Christopher & Colton Whitley(4), and Lauren Olivia(2). Thanks so much~Skye & Tyler