Good Morning Ladies

I'm new to the board and really need some advice, my relationship is struggling becuase of our sex life and I dont know what to do so i'm hoping someone can help me.

The thing is i've been with DH for almost 6 years now and we have a 1 year old son together ( i have 2DD's to previous partner) anyway since have DS out sex life has gone from full on to none existant, at first he was understanding, i've just had a baby not going to be interested straight away, then looking after 3 kids, then coming back to work full time, but now it's at a point where I cant even remember the last time....

We dont go out together as I have no family and it's hard to get a babysitter, I work full time, he works 6 days a week and tbh during the week by the time i get home and do the everyday household chores, sex is the last thing on my mind and sleep is top!

Dont get me wrong I love him to bits and I don't want to be without him, but I have no interest in sex at all, saying that when we do it's over in minutes...to which i think well that was worth the wait..........NOT but then again if he hasn't had it then is it suprising it's over so quick....I have noticed that even when he gets into bed i dont want him to touch me becuase i know where he's leading, but what's worse telling him to get off me or saying no to sex and rejecting him again????????

God this sounds so bad, I sound such a bitch!  but I just cant get in the mood for sex and I know I have to do something about it but what......................

....this is where im hoping you ladies come in and help me!  I've told DH we need to talk tonight because I know he's not happy with the way things are.