---
title: "Pregnant Halloween Costume — $26K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/pregnant-halloween-costume"
last_updated: "2026-08-11T11:49:28.874Z"
locale: en
meta:
description: "Niche score 51/100 · $26K/yr market · 967K searches/yr · $19.27 avg price. Weak search conversion (0.1%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $26K/yr market · 967K searches/yr · $19.27 avg price. Weak search conversion (0.1%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Pregnant Halloween Costume — $26K/yr Amazon US Niche (2026) - Flapen"
---
# **pregnant halloween costume**
**Worth a look**
Shows demand growing +101.1% this quarter, but weak search conversion (0.1%) keeps it on the watch list.
Market size 7Growth 91Conversion 2Competition 82Returns 19Price range 88Avg price 86Brand share 63Review moat 44Quality gap 52
**Growth**
**Great****+101.1%**
90-day search growth — must beat 0% to launch
**Price range**
**Great****$9.92–$69.02**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$19.27**
avg listing price — sweet spot $15–$100
**Competition**
**Great****33%**
top-5 click share — an open shelf
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,069.25**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Bad****6.6%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$26K**
$26K/yr · 967K searches
**Conversion**
**Bad****0.1%**
search→purchase rate — share of searches ending in a sale
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, pregnant halloween costume is a $26K/yr Amazon United States market (967K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Worth a look — 51/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pregnant halloween costume market data**
- **Units sold / yr**
- **3K–4K**
- avg 0–100/product
- **Revenue / yr**
- **$58K–$77K**
- units × avg price
- **Conversion rate**
- **0.1%**
- **Avg BSR**
- **#18,000**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **20.7%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **203 days**
## **Competition & brand share**
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.
**Brands**
**22 **▼falling
**Sellers**
**25**
**Top-5 brand share**
**67%**
Top 20: 99%
**Top-5 click share**
**33%**
Top 20: 69%
**Open market**
**29%**
- Crazy Dog T-Shirts41% - Mepase12% - Wakefulness Youth6% - SGYHO5% - For G and PL5% - Teesider4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +101.1% search growth over the last 90 days.
150K100KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 278.7×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/pregnant-halloween-costume/trend)
## **Top pregnant halloween costume search terms**
- **pregnant halloween costume**220K/yr+267.3%0.0% conv. - **maternity halloween costumes**142K/yr+217.9%0.0% conv. - **halloween costumes for pregnant women**63K/yr+187.2%0.0% conv. - **pregnancy halloween costumes**81K/yr+196.8%0.0% conv. - **halloween pregnancy shirt**44K/yr+268.7%0.2% conv. - **halloween maternity shirt**46K/yr+165.7%0.2% conv. - **maternity costume**37K/yr-30.7%0.0% conv. - **maternity halloween**22K/yr+154.5%0.0% conv. - **maternity halloween shirt**52K/yr+125.3%0.0% conv. - **pregnant halloween shirt**51K/yr+163.5%0.2% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/pregnant-halloween-costume/search-terms)
## **Top pregnant halloween costume products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$7836%$2K9%$2K12%$3K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Mepase Boho Witch Lace Kimono Kaftan Dress Robe Bikini Swimsuit Beach Cover up for Women Maternity Halloween Vampire Costume(Black)**Mepase**$18.91**4.4★304 rev](https://www.amazon.com/dp/B0C4H1VQH7) [2**Maternity Happy Jack O Lantern Pregnancy T Shirt Cute Halloween Pumpkin Bump Tee Funny Graphic Pregnancy Tee Halloween Maternity Wear Maternity Shirts Orange M**Crazy Dog T-Shirts**$18.34**4.3★290 rev](https://www.amazon.com/dp/B07G57NLPG) [3**Maternity Baby Girl Skeleton Pregnancy Halloween Baby Bump Tee Black XL**Crazy Dog T-Shirts**$13.29**4.4★8,600 rev](https://www.amazon.com/dp/B075RDB6X3) [4**Maternity Monster Eyeball Halloween Pregnancy Bump Cute T Shirt Green L**Crazy Dog T-Shirts**$13.83**4.4★8,600 rev](https://www.amazon.com/dp/B00OY2QE8C) [5**Maternity Monster Eyeball Halloween Pregnancy Bump Cute T Shirt Green M**Crazy Dog T-Shirts**$13.87**4.4★8,600 rev](https://www.amazon.com/dp/B00OY2QCUW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Halloween Maternity Shirt for Women Funny Pumpkin Graphic Pregnancy Tee Short Sleeve Mama to Be Fall Holiday T-Shirt**Wakefulness Youth**$14.86**2 rev2mo ago](https://www.amazon.com/dp/B0GZ6CSJV4) [**Halloween Maternity Shirt for Women Funny Pumpkin Graphic Pregnancy Tee Short Sleeve Mama to Be Fall Holiday T-Shirt**Wakefulness Youth**$13.94**2 rev2mo ago](https://www.amazon.com/dp/B0GZ645H7S) [**Maternity Halloween T Shirt Skelly in My Belly Pregnant Short Sleeve Shirts Halloween Pregnancy Announcement Top Tees Gray**SGYHO**$16.48**0 rev2mo ago](https://www.amazon.com/dp/B0GYM7TP4F) [**Maternity Halloween T Shirt Skelly in My Belly Pregnant Short Sleeve Shirts Halloween Pregnancy Announcement Top Tees Apricot**SGYHO**$20.45**0 rev2mo ago](https://www.amazon.com/dp/B0GYM7LYND) [**For G and PL Halloween Womens Maternity Pregnant Winnie Costume Breastfeeding Pregnancy Color Block Dress Multicoloured L**For G and PL**$30.74**79 rev12mo ago](https://www.amazon.com/dp/B0FHW1DYLB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Maternity Halloween T Shirt Skelly in My Belly Pregnant Short Sleeve Shirts Halloween Pregnancy Announcement Top Tees Apricot**SGYHO**$20.45**0.0★**▲ 393%**](https://www.amazon.com/dp/B0GYM7LYND) [**Halloween Maternity Shirt for Women Funny Pumpkin Graphic Pregnancy Tee Short Sleeve Mama to Be Fall Holiday T-Shirt**Wakefulness Youth**$14.86**5.0★**▲ 392%**](https://www.amazon.com/dp/B0GZ6CSJV4) [**Fake Pregnant Belly Ultra Lightweight Memory Sponge Fake Baby Bump for Maternity Photo Shoot Halloween Cosplay Film Props Realistic Looking Large Twin Size Belly with Adjustable Strap (8-9 Months)**Alokmn**$34.80**4.8★**▲ 391%**](https://www.amazon.com/dp/B0FPB7373W) [**Maternity Halloween T Shirt Skelly in My Belly Pregnant Short Sleeve Shirts Halloween Pregnancy Announcement Top Tees Gray**SGYHO**$16.48**0.0★**▲ 388%**](https://www.amazon.com/dp/B0GYM7TP4F) [**Halloween Maternity Shirt for Women Funny Pumpkin Graphic Pregnancy Tee Short Sleeve Mama to Be Fall Holiday T-Shirt**Wakefulness Youth**$13.94**5.0★**▲ 386%**](https://www.amazon.com/dp/B0GZ645H7S)
**~~View all trending →~~**
## **What buyers say about pregnant halloween costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**22%
*“So comfortable”*
**Size-Overall**15%
*“Fit very snug”*
**Stretchability/Expandability/Elasticity**8%
*“Comfortable and stretchy”*
**Soft Feel**8%
*“The fabric is soft”*
**Quality-Overall**7%
*“Good quality, adjustable size”*
**Material Quality**5%
*“Super comfy material”*
**Transparency**4%
*“Not see through”*
**Shape/Style**3%
*“Its cute to pair with any outfit”*
**Value For Money**2%
*“Was good deal for 5mins”*
**Thickness**2%
*“Great thick material”*
### **What buyers complain about **
**Size-Overall**13%
*“awkward fit”*
**Quality-Overall**12%
*“not the best quality”*
**Material Quality**6%
*“Cheap material and the head part doesn't stay up very well”*
**Product Condition**5%
*“However, what was extremely disappointing is that it arrived used”*
**Gap/Hole**4%
*“Arrived with a huge hole in the left leg”*
**Comfort-Overall**4%
*“So uncomfortable”*
**Waist Fit**3%
*“Not stretchy for the belly”*
**Stretchability/Expandability/Elasticity**3%
*“It doesnt have much stretch”*
**Allergies**2%
*“itchy lace that does not drape or flow nicely”*
**Thickness**1%
*“Material is thicker than expected”*
### **Top return reasons **
**Size-Overall**51%
**Length**14%
**Material Quality**6%
**Waist Fit**5%
**Advertised Vs Actual Product**4%
**Shape/Style**3%
**Thigh Fit**2%
**Chest Fit**2%
**Gap/Hole**1%
**Value For Money**1%
## **Common questions**
- **Is pregnant halloween costume profitable to sell on Amazon United States?**
- The niche generates $26K/yr across 53 tracked products. 0 of 9 products launched in the last 360 days are still selling. 90-day search growth is +101.1%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the pregnant halloween costume niche?**
- 22 brands and 25 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in pregnant halloween costume?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 6.6% — above our launch gate.
- **When does demand for pregnant halloween costume peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 278.7× the quietest.
- **What does it cost to enter the pregnant halloween costume niche?**
- Listings span $9.92–$69.02; the average listing price is $19.27 (sweet spot $15–$100). The average incumbent carries 2,069 reviews — the moat a new listing must climb.
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