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Related Experiment Video

Updated: May 31, 2026

Screening People on Standing Balance with Romberg Testing and Walking Balance with Tandem Walking

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TwoDay Method: a quick-start approach.

Victoria Jennings¹, Irit Sinai, Luisa Sacieta

¹Institute for Reproductive Health, Georgetown University, Washington, DC 20008, USA.

|July 16, 2011

Summary

The TwoDay Method, a fertility awareness-based family planning option, can be initiated at any time during a woman's cycle, not just the first seven days. This quick-start approach does not negatively impact correct use or satisfaction.

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Area of Science:

Family planning methods
Fertility awareness-based methods
Reproductive health

Background:

Traditional family planning initiation often requires waiting for menses, creating a barrier to timely contraception.
The TwoDay Method, a fertility awareness-based method, was previously taught within the first seven days of the menstrual cycle.
This study investigated a 'quick-start' approach for delivering the TwoDay Method at any point in the cycle.

Purpose of the Study:

To evaluate the efficacy and feasibility of initiating the TwoDay Method at any time during the menstrual cycle.
To determine if a quick-start approach impacts the correct use, continuation, or acceptability of the TwoDay Method.
To assess the quality of provider counseling when the TwoDay Method is initiated outside the traditional window.

Main Methods:

A study in Peru involved 167 women counseled on the TwoDay Method regardless of their cycle day.
Participants were followed for up to 7 months, with periodic interviews assessing method use and satisfaction.
Simulated clients evaluated providers' counseling accuracy for quick-start TwoDay Method initiation.

Main Results:

No significant differences were found in correct use, continuation rates, or acceptability based on the timing of cycle initiation.
The quick-start approach did not compromise the quality of counseling provided by healthcare professionals.
Acceptability and correct usage remained high irrespective of when the method was introduced.

Conclusions:

The TwoDay Method can be effectively initiated at any point in the menstrual cycle.
Limiting TwoDay Method delivery to the first seven days of the cycle is unnecessary.
Quick-start initiation enhances accessibility to this fertility awareness-based family planning method.