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Looking for big sister pregnancy announcement ideas in 2025? Check out my list of the cutest ways to include your daughter in your pregnancy announcement!
Welcoming a second or third baby into your family is always a happy and memorable event! And one thing that makes it so special is that you can include your other children in the announcement, making it a family celebration of your growing family!
If you have a daughter (or two) and you’re expecting, you’re probably looking for ways to announce your little one will be a big sister! Luckily, I’ve got you covered with my list of big sister pregnancy announcement ideas that are sweet and special. So scroll down to get started and get inspired!
01. Big Sis Balloons

Use Big Sis balloons as a backdrop for your little girl to sit in front of for a super cute announcement photo!
02. Family Portrait

Create a first family portrait with the big sister and new baby by posing together with the ultrasound photos.
03. Surprise The Big Sis

Snap a shot capturing the big sister’s surprised face while looking at the baby photos!
04. Oh Baby!

Create a sweet moment with your daughter and the ultrasound photos using balloons, glitter, and disco balls!
05. Beach Baby Announcement

Stand as a family in the background with a baby announcement as the focus for beautiful beachy announcement photos.
06. Big Sister Onesie

Dress your daughter up in a big sister onesie to announce to the world that you’re expecting!
07. Holding Hands

An up-close shot of big sis holding hands with Mama and Papa and the ultrasound photos is beyond adorable!
08. Silly Siblings

For a third baby, get matching outfits and a baby doll to create a sweet but silly sibling portrait!
09. To-Do List

Show your daughter checking off tasks from her to-do list – including becoming a big sister!
10. New Baby Close-Up

Zoom in on the ultrasound photo with Mom, Dad, and the big sister holding each other close in the background.
11. Big Sis & Belly

Capture an intimate moment with Mama, her belly, and her daughter close together.
12. Only Child Expiring

For a funny announcement, have your daughter make a sad or upset face while holding a sign saying Only Child Expiring with your due date underneath!
13. Excited Sissy

Snap a pic of how excited the big sister is while holding ultrasound photos and proudly sporting a Sissy tee.
14. Big Sister Beach Announcement

Big Sister, written in sequins across a beach hat, is perfect for a sweet and simple announcement.
15. Ultra Cute w/ Ultrasound Photos

Gather your family to capture ultra-cute moments with the big sister and ultrasound photos!
16. Family Celebration

Pair a Big Sister sweater with a flag and ultrasound pics for a family celebration to remember!
17. Baby No. 2

Go for a solo photo showing your beautiful belly with Baby No. 2 painted on it!
18. Sassy Big Sis

Dress your little one in a sweet, sassy outfit, and let her pose with the baby photos and show her excitement!
19. Floral Backdrop

For a cute, feminine background, add dainty baby’s breath to the wall and floor so your daughter can pose with ultrasound photos.
Final Thoughts
Whether you want something simple, sweet, or silly, this list of big sister pregnancy announcement ideas will surely make sharing your news even more exciting and special!