The goal of this clinical trial is to compare if playing music before and during an embryo transfer can make a difference for women who are going through a frozen embryo transfer as part of a medical procedure called assisted reproduction technology (ART).

The main questions it aims to answer are:

• Does listening to music before and while having the embryo transfer make patients feel more satisfied and less anxious?
• Does listening to music before and during the embryo transfer affect how likely it is for the woman to get pregnant?

Before the embryo transfer, the participants will listen to music through earphones or speakers. During the embryo transfer, the participants will listen to music through speakers.

During the embryo transfer, the comparison group will not listen to music and will receive the usual care.

The aim is to see if listening to music before and during the embryo transfer can help make the procedure better for women.

Inclusion Criteria:

• women undergoing a frozen embryo transfer as a consequence of an ART technique

Exclusion Criteria:

• gestational carriers
• hearing-impaired or deaf persons
• fresh embryo transfers

Individual participant data that underlie the results reported in the article, after deidentification (text, tables, figures, and appendices).

Beginning 9 months and ending 36 months following article publication

Investigators whose proposed use of the data has been approved by an independent review committee identified for this purpose.

Sealed opaque envelopes will be employed within the 7 days preceding the embryo transfer (for fresh transfers, it will be done on the day of fertilization, and, for frozen transfers, it will be done once the endometrium is prepared and it is ready to start the progesterone supplementation). Both the participants and the attending physician will be aware of the assigned allocation group. The researcher responsible for outcome assessment will remain blinded to the allocation.