Announcement help!

I’m 12 weeks pregnant and my bf and I are expecting our first child together ... but I have 2 other kids from a past relationship and he has 2 kids from a past relationship ... neither one of us have had happy pregnancies or healthy relationships so we’re both extremely excited to do it right this time and we want to celebrate every step.. we want to include all 4 of our kids in the announcement but we’re both lacking ideas ..(he’s really no help at all 🙄 lol) ANY ideas or suggestions would be greatly appreciated honestly!

Thanks mamas !