Breaking The News

I’m 22 and 4 weeks pregnant and no one knows. I told the father of my child and he suggested abortion (which I’m totally against) i have a week long family vacation coming up where My parents and my sisters will all be there. I don’t want to say anything until after the vacation because I don’t want to be stuck getting lectured for a whole week.So I’m thinking about just waiting until after it’s over. By the time the vacation is over I’ll be around 9 weeks pregnant. Any suggestions on how to break it to my family? (This isn’t their first grandchild)