Positive pregnancy/dual gender announcement ideas!

Hi everyone! My boyfriend (23) and I (21) accidentally fell pregnant in April. We've decided that we want to do everything we can to make it work and do what's best for the baby, however his family is extremely religious and we're very nervous to announce. His sister accidentally got pregnant last year at 20, and they took it in a really negative way. So instead of coming to them with our heads down and tails between our legs, we want to make sure they take it very positively and we seem like we know what we're doing! (Even though we definitely don't 😉)

So... does anyone have any ideas of how to announce to make it exciting and positive, instead of shameful and negative? We would like to announce the pregnancy and then announce the gender in the same day😊 All ideas/opinions are welcome and thank you very much!!