Not feeling attached...

Please don't bash or say anything bad I know how it must sound and I don't know what to do or how to fix it... but I just don't feel attached to this baby.. it will be my third (not planned and not the gender I was expecting) I don't know why but I can't help but feel distant.. my boyfriend doesn't help because you doesn't seem to be as excited as I'd like.. he doesn't touch my stomach or make a big deal when she moves nothing.. I get nothing.. my last pregnancies the dad was so into it and excited and posted all over social media and now I get nothing from this baby's dad.. please help I don't want to feel this way..