How do I become more interested in sex with my husband?

It's ironic that we met 8 years ago on a dating website and began our relationship as sex buddies. We were mad for it, I acted in ways I hadn't ever before and it was the best sex I had ever had!

Fast forward 8 years, we are married, we have 2 children under the age of 2 (one born 2 months ago) and I just have zero interest in sex and it has been like this, much to my husband's disappointment, for a couple of years now.

It's always him initiating things, and without even thinking about it I always have an excuse - I'm tired, I don't feel like it, I didn't get a chance to shower today (2 under 2 does that to me) or I just say no.

He is starting to get really pissed off with it, he's tried buying things to spice things up...he tries it on at least once a day but I don't like the way he tries and I have told him this. It just comes across as forceful and I want him to "woo" me gradually which I have told him but I wish I felt sexy/confident to woo him too! Having just had a baby I feel disgusting, I tore (again) and think my vagina is probably useless now...

I wish I could meet my husband's needs, feel sexy/confident and just want to jump on him but there is always that mental block! How can I get over that and just let him do what he's so desperate for?!

When I do I feel sometimes like it's a chore and I am just doing it to keep him happy for a while until he wants it again...it doesn't feel normal to me...I want to want it!