Family ughh

So I found out that my brother in laws girlfriend of three months is pregnant and due the same time I am! And I don’t know why I’m pissed!!! And can’t get over it! I been in the family for 8 years and have a hard time with them because of them just being ass holes but since he is the baby boy of the family they accept her with open arms and love and put me and my husband aside .... how do I even cope with this??