This study is being done to test a new questionnaire about changes in menstrual cycles while using contraception. Researchers hope to develop a better way to measure these changes for future clinical trials.

You may be eligible for this study if you meet the following criteria.

Inclusion Criteria:

• Women aged 18- 49
• Started a new birth control method within the past 2 months
• Currently using a birth control method
• Have daily access to a personal smartphone or similar internet-connected device
• Able to read and understand English
• Not currently using other hormonal treatments that affect reproductive hormones
• The birth control method must be new to you (replacing/refilling the same method does not count)
• Have not participated in an earlier phase of this study

If you qualify and choose to participate:

• You will complete the pre-screening, consent, and enrollment process virtually.
• You will answer questions electronically every day for 90 days using your personal phone or another device with internet access.
• Daily questions will take about 2–10 minutes to complete.
• Once each month, you will complete an additional set of questions that takes about 10–20 minutes.
• You will need access to a device with a camera and keep your camera on during the virtual consent process.
• A phone interview will be conducted as part of the screening process.

Participants may receive up to $250 for completing the study. 

There is no cost for you to participate in our research study.