Tmi (sorry...rant)

My SO and I are trying for our first child. Well, he says we are and I say we are but he NEVER want to BD. I'm lucky if we have sex once a month. Usually I'm the one that instigates it and then feel like I'm forcing him into it. He's so hard to turn on. I could be in something super cute or naked and it doesn't even phase him. He just lays in bed watching stupid videos on his phone. He wants nothing to do with me. Last time he was in the mood and I didn't have to start it, we hadn't had sex in over two months.