Mixed emotions

So I had a miscarriage in 2014 and lost my baby at. 6 weeks pregnant. My husband and I have been trying ever since. My sister calls me the other day and tells me she's pregnant I tell her how excited I am and congrats to keep me updated on her appointments!  But then I hang up and think... She gets drunk every night, does weed and shrooms... And gets pregnant before me and I'm trying everything. :( sorry for venting... I really am happy for her! Maybe this is a way for her to stop her partying life!