is it me?

Ok long story short. I'm 26 been with my partner for over a year now. we're ttc #1. But there is one small thing I don't have the biggest libido in the world can quite happily go without. but I've been doing the deed in order to get pregnant. But in previous relationships sex was exciting and adventurous i don't mind being dominated if you like bitten hair pulling basically a guy who knows was he wants a little dirty talk here and there. But with my partner he just doesn't do that... He was a virgin when I met him. I've showed him all I can show him. He can make me orgasm during foreplay but it means I'm lying on my back in the same position every time... which makes my mind wonder. when it comes to sex i have to tell him when to "put it In"... there's no variety. don't get me wrong I enjoy it but I just want that excitement factor I want to see him be the confident dominant male. I've asked him if he's a bit shy about sex and if he is we will work on that but he says he's not...our text conversations consist of how bored he is at work or what I'm making for dinner. he's 6 foot 4, and over all a very manly man who I love dearly and we are rrady for a baby just i want the bany making to be exciting. but when it comes to the sex it's.like he coils when I bring it up and say we need to spice this up a bit babe he just says it's because we don't have privacy as were waiting on mortgage being accepted...and for it to be accepted he needs to sell his car which is taking ages. any advice? or am I being a but hsrsh?