PRESTO (Pregnancy Study Online)

PRESTO is a web-based research study that examines whether lifestyle factors such as diet, exercise, and medication use have an impact on fertility and pregnancy outcomes.

You and 2,500 other women are being invited to complete one online questionnaire at enrollment and every 2 months for up to 12 months or until pregnancy occurs.

You will also have the opportunity to invite your male partner to participate.

Half of enrolled participants get a free VIP membership at, an online software program that records your menstrual cycles and fertility signs (available to new members only).

PRESTO is a non-profit study being conducted by researchers at Boston University. It is funded by the National Institutes of Health.

Eligible female participants are:

-Age 21-45

-Not currently using any methods to prevent pregnancy

-Not using fertility treatments

-In a stable relationship with a male partner

-Thinking about becoming pregnant in the next 6 months and not currently pregnant

-Willing to participate in a 12-month study

The study objectives are to identify lifestyle factors that affect the chances of successful pregnancy. The study will also examine predictors of miscarriage, preterm birth, and low birth weight.

- One online survey at enrollment (30-35 minutes).

- One online survey every 2 months for up to 12 months or until you get pregnant (10-15 minutes).

- One online diet survey 10 days after enrollment (30-40 minutes).

- If you become pregnant, one survey in early pregnancy (10-15 minutes) and one survey in late pregnancy (10-15 minutes).

- Optional: male partner survey (10-15 minutes).

Listen to our radio documentary.

Read about us in SPHERE magazine and Paediatric and Perinatal Epidemiology.

Click here to enroll in PRESTO.

**Participants: please login here to fill out your latest survey**

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