<human>: Can you give me a shortened version of the text?

Basically my dad and I have always been really close (bonded over music and our generally laid back personality). 

Last year I found out that he and his wife were trying to have a baby; now, she has lupus so we aways figured it was a long shot. Either way, I supported them because all I want is for him to be happy.

A little less than a week ago while I was home for break I found an ultrasound picture in the house and confronted him about it...Yes, she is pregnant.

He had no plans to tell me and then asked me not to tell my siblings. I felt I was in an unfair position so I told him he had to tell them or I would. I ended up telling my sister (20) and then he sent me a really mean text saying that he thought he could trust me (except he didn't because I found the picture by mistake)

In any case, I am not mad at them but I feel completely heartbroken and I don't know how to handle our relationship now, especially knowing I won't be his priority anymore. What should I do?
<bot>: My dad is having a baby and, while I want him to be happy, it is completely breaking my heart. Is there anyway to make it hurt less?