Being in this research study is completely voluntary. You can choose not to be in this research study. You can also say yes now and change your mind later.

If you agree to take part in this research, you will be asked to answer questions about MS and family planning, pregnancy, and breastfeeding.

We expect that about 500 participants will take part in this research study.

You can choose not to answer any question you do not wish to answer. You can also choose to stop taking the survey at any time. You must be at least 18 years old to participate. If you are younger than 18 years old, please stop now.

The possible risks to you in taking part in this research are:

• You might feel uncomfortable with not knowing some of the answers, but please know that we consider any information you share with us important and valuable.
• The potential loss of confidentiality of data is a minimal risk as this is an anonymous survey and information is stored in a secure manner in a firewall-protected database.

To protect your identity as a research subject, the research data will never be stored with your name and any information will not be shared outside the research team. In any publication about this research, your name or other private information will not be used.