Try not to be too judgmental, but I had an abortion. My significant other and I decided to. My family still?

[no name]

thinks I am pregnant. My BF has bought the engagment ring, but has not given to me yet. I love my family very much, and they are very "pro-life", and children mean the world to this catholic family.My BF is going with me to the family 4th of July festivites. I am so scared to be around my family. I do not have any idea how to handel this. Please help. Remember I am not proud of what I have done, but it was the best decision for myself/BF.