Evil In-laws

I need to vent because I can't tell anyone else!! I've had two miscarriages so far.  When I had my first one it was right before we went on a family trip with my husbands family.  I was super emotional and didn't want to go, but I went anyway.   One the of nights we all went out and my husbands cousin made a comment about how I must not be pregnant because I was drinking.  I broke down crying and ended up telling them my struggle.  Fast forward 8 months and 1 more miscarriage later, and they are pregnant. The post a picture on Facebook announcing their 3rd pregnancy.  My husband and I both "liked" the picture. 
Now they are going around to different family members saying that we didn't congratulate them and we are jealous because I can't get pregnant (nobody knows but I'm pregnant now ).  It just hurt my feelings because my miscarriages weren't public, they only knew because her husband make a very ignorant comment to me which in turn made me react the way I did.  I'm pissed because if you cared so much about our reaction, then why didn't you call or text us?  You're mad and saying hurtful things because we didn't write it on Facebook? 
I can't stand my husbands family.. and this just adds to it.  I'm so done with them!!