I have heard mixed things about Natural Cycles effectiveness for preventing pregnancy so I want to know the real failure rate statistics.
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
I have heard mixed things about Natural Cycles effectiveness for preventing pregnancy so I want to know the real failure rate statistics.
3 real searches · 1 real-search pass
Natural Cycles contraceptive effectiveness typical use perfect use Pearl Index 2024 FDA 93% 98% failure rateGoogle ↗
OBSERVEDConsequence
FDA Natural Cycles app De Novo decision effectiveness 1.8 pregnancies per 100 woman years typical useGoogle ↗
OBSERVEDReason
Natural Cycles study effectiveness typical use 7 pregnancies per 100 women year peer reviewedGoogle ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
Natural Cycles contraceptive effectiveness typical use perfect use Pearl Index 2024 FDA 93% 98% failure rate Google ↗
FDA Natural Cycles app De Novo decision effectiveness 1.8 pregnancies per 100 woman years typical use Google ↗
Natural Cycles study effectiveness typical use 7 pregnancies per 100 women year peer reviewed Google ↗
- Perfect-use and typical-use Pearl Index of a contraceptive mobile app · pubmed.ncbi.nlm.nih.gov
- Contraceptive Effectiveness of an FDA-Cleared Birth Control App: Results from the Natural Cycles U.S. Cohort. · pubmed.ncbi.nlm.nih.gov
- How Effective is Natural Cycles ? · naturalcycles.com
- DE NOVO CLASSIFICATION REQUEST FOR NATURAL CYCLES · accessdata.fda.gov
- Perfect-use and typical-use Pearl Index of a contraceptive mobile app · pmc.ncbi.nlm.nih.gov
- Contraceptive Effectiveness of an FDA-Cleared Birth Control App: Results from the Natural Cycles U.S. Cohort - Jack T. Pearson, Magda Chelstowska, Simon P. Rowland, Eleonora Benhar, Helena Kopp-Kallner, Elina Berglund Scherwitzl, Juan Acuna, Kristina Gemzell Danielsson, Raoul Scherwitzl, 2021 · journals.sagepub.com
- Clinical and technical evidence | Natural Cycles for monitoring fertility | Advice · nice.org.uk
- Natural Cycles for monitoring · nice.org.uk
- How well contraception works at preventing pregnancy · nhs.uk
- Birth Control · fda.gov
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
Natural Cycles contraceptive effectiveness typical use perfect use Pearl Index 2024 FDA 93% 98% failure rate OBSERVED | Google ↗ AI Mode ↗ | — | Consequence | — | — | 1x of 1 | |
FDA Natural Cycles app De Novo decision effectiveness 1.8 pregnancies per 100 woman years typical use OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
Natural Cycles study effectiveness typical use 7 pregnancies per 100 women year peer reviewed OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |