Help me show my parents that I can love a child

Help how do I tell my parents that I am pregnant?
I'm 19 and he's 31 that's the first issue they have they think I'm too young and he's too old
I live in another country then them but I been hiding it for 3 months and I always was told to tell them soon as I can but I didn't and I don't want them to yell at me or something for lying or keeping it a secret.
I'm not married yet so people in my family who are traditional or the church because my parents might tell friends and families who will say to church about my issue to pray

How can I tell my parents
Why is it so hard to tell
Please how can I get them to not go crazy