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51

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

Great33%

top-5 click share — an open shelf

Brand share

Good67%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,069.25

avg incumbent reviews — the moat a new listing must climb

Returns

Bad6.6%

return rate — above 5% kills the launch gate

Market size

Bad$26K

$26K/yr · 967K searches

Conversion

Bad0.1%

search→purchase rate — share of searches ending in a sale

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

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 '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 278.7×

Top pregnant halloween costume search terms

  • pregnant halloween costume220K/yr
  • maternity halloween costumes142K/yr
  • halloween costumes for pregnant women63K/yr
  • pregnancy halloween costumes81K/yr
  • halloween pregnancy shirt44K/yr
  • halloween maternity shirt46K/yr
  • maternity costume37K/yr
  • maternity halloween22K/yr
  • maternity halloween shirt52K/yr
  • pregnant halloween shirt51K/yr
All 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 moat Market 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.

What buyers say about pregnant halloween costume

What buyers praise and complain about, mined from review topics.

What buyers love

Comfort-Overall22%

“So comfortable”

Size-Overall15%

“Fit very snug”

Stretchability/Expandability/Elasticity8%

“Comfortable and stretchy”

Soft Feel8%

“The fabric is soft”

Quality-Overall7%

“Good quality, adjustable size”

Material Quality5%

“Super comfy material”

Transparency4%

“Not see through”

Shape/Style3%

“Its cute to pair with any outfit”

Value For Money2%

“Was good deal for 5mins”

Thickness2%

“Great thick material”

What buyers complain about

Size-Overall13%

“awkward fit”

Quality-Overall12%

“not the best quality”

Material Quality6%

“Cheap material and the head part doesn't stay up very well”

Product Condition5%

“However, what was extremely disappointing is that it arrived used”

Gap/Hole4%

“Arrived with a huge hole in the left leg”

Comfort-Overall4%

“So uncomfortable”

Waist Fit3%

“Not stretchy for the belly”

Stretchability/Expandability/Elasticity3%

“It doesnt have much stretch”

Allergies2%

“itchy lace that does not drape or flow nicely”

Thickness1%

“Material is thicker than expected”

Top return reasons

Size-Overall51%
Length14%
Material Quality6%
Waist Fit5%
Advertised Vs Actual Product4%
Shape/Style3%
Thigh Fit2%
Chest Fit2%
Gap/Hole1%
Value For Money1%

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.