5 Boo-tiful Halloween Pregnancy Announcement Ideas

If you just found out you’re expecting and Halloween happens to land somewhere near your first trimester, you’re in luck. This holiday is basically made for a fun pregnancy announcement. You’ve already got pumpkins, costumes, spooky puns and a built-in excuse to gather everyone together, so why not use it to share your news?

Before you get carried away with props and costume ideas, it’s worth thinking through a few practical things. Then we’ll get into our favourite Halloween pregnancy announcement ideas, from costumes and t-shirts to due date reveals and ways to include older siblings or twins.

A Few Things to Think About Before You Announce

Lots of parents wait until after their first scan (usually around 12 weeks) before telling anyone outside their immediate circle, simply because the risk of miscarriage drops significantly after this point. There’s no right or wrong time to share your news though, and it’s entirely your choice. If you’re unsure, it’s worth having a chat with your doctor or midwife about how you’re feeling and what they’d recommend for your particular situation.

It’s also worth thinking about who you want to tell first, and in what order. Some parents like grandparents or close friends to hear the news privately before it goes anywhere near social media. Once you’ve got that sorted, the fun part starts: working out how you actually want to share it.

A couple of practical notes if your announcement involves a costume. Pregnancy affects your balance, your temperature regulation and sometimes your skin sensitivity, so:

• Avoid anything with a tight waistband, restrictive corseting, or heavy layers that could make you overheat, especially if you’ll be out trick-or-treating or standing around for photos.
• Skip high heels or platform shoes if your balance feels off. Pregnancy shifts your centre of gravity more than you’d think.
• Patch test any face paint, temporary tattoos or adhesive tape (like the athletic tape used in the mummy costume below) on a small area of skin first. Skin can react differently during pregnancy.
• If you’re heading out in the evening, wear something reflective or carry a torch. Kerbs and uneven pavements are harder to judge in the dark, and your reflexes and balance aren’t quite what they normally are.

None of this should stop you having fun. It’s just worth building in a bit of comfort and common sense.

1. Halloween Costumes That Double as a Pregnancy Announcement

The Milkman and 50s Housewife
If your bump isn’t showing much yet, tuck a small pillow or cushion under a full-skirted dress. Add a cheap string of pearls, victory rolls or curled hair, and bright red lipstick. Pair it with a partner dressed as a 1950s milkman holding a bottle of milk, and the “delivery” joke does all the work for you. This one photographs really well on a porch or doorstep.

Mama Kangaroo with a Joey in Her Pouch
This is one of the simplest ideas on this list and it works at any stage of pregnancy, even before you have a bump. All you need is a brown dress or tunic, a pouch sewn or pinned onto the front (a small stuffed toy kangaroo peeking out works nicely), and a pair of ears on a headband. It’s comfortable, it’s warm, and there’s zero chance of overheating in it, which makes it a good option if you’d rather skip anything restrictive.

Spaghetti and Alcohol-Free Beer
This one gets a laugh because it plays on the classic “bun in the oven” style joke but with a plate of spaghetti stuck to a red top (felt or paper meatballs and parsley hot-glued on) and a bottle of alcohol-free beer in hand. It also happens to send a genuinely useful message, since it’s a nice visual reminder that you’re steering clear of alcohol while pregnant. If you’d rather not glue things to a good t-shirt, buy a cheap one specifically for this.

Bun in the Oven
An oven costume with a “bun” bump built into the front, worn alongside a partner dressed as a baker or wearing a bun-shaped hat, is a firm favourite for a reason. It’s an easy visual joke that everyone gets instantly. Ready-made versions are widely available online, or you can find a custom one made by a small shop if you want something more personal.

Skeleton Mama and Baby
An all-black outfit with an iron-on ribcage design, and a smaller skeleton “baby” printed lower down where a bump would sit, looks striking in photos and doesn’t require anything tight or uncomfortable. The iron-on transfer route is a good option here since you’re not stuck wearing a fitted costume, and you can size the placement to wherever your bump actually is.

Mummy Mama
Genuinely one of the cheapest and easiest ideas here. Wrap strips of white athletic tape or torn white fabric loosely around a plain white top, leave a gap over the bump, and write “boo!” or a due date on the exposed skin or fabric with a marker. A bow on top finishes it off. Do a patch test with the tape first though, since pregnant skin can be more reactive to adhesives than usual.

Thing 1 and Thing 2 (Soon to Be Thing 3)
If you’ve already got one child, dressing the family as Thing 1 and Thing 2 and adding a small “Thing 3 coming [due date]” sticker to your bump or a onesie is a sweet way to tie the announcement to your existing family. Personalised iron-on transfers or stickers with your due date are easy to find from small print shops.

2. Due Date Announcements With a Halloween Twist

If you’d rather skip a costume altogether, a simple sign or prop with your due date works just as well and takes far less effort. These are especially good for a social media post or a quick photo to send round the family group chat.

“No Trick, Just a Treat”
A chalkboard sign reading something like “No trick, just a treat, our family is growing by two little feet” is simple, sweet, and easy to write on a chalkboard you probably already have from a wedding or another event.

Expecting Our Little Pumpkin
Pumpkins are the obvious prop of the season, and there’s a lot you can do with them. Write your due date directly onto a pumpkin with a paint pen, line up a row of mini pumpkins to spell out “coming soon”, or use a single tiny pumpkin next to your bump for a simple, uncluttered photo.