feeling awful

So my friend told me she's pregnant yesterday but doesn't know who the dad is... well she asked me to be happy for her, but I can't, and I told her, that give me time to get over the fact that you weren't trying and got pregnant and here my husband and I trying and not pregnant after 6months.. she like I'm not ready for this, I don't know if I can stop drinking or doing the random drugs I been doing.. I'm hurt that it's her, I want to support my friend but idk how to yet... she wants me to go to every apt but I feel like, it's just gonna hurt more to see someone else's baby and everything.. I just want to be happy for her, why can't I put my feelings off to just be there for a friend... I think what made me feel this way, is she said it was supposed to be you pregnant not me, why can't you just get pregnant or just take this kid... ughhhh:/