Pregnancy is associated with complex physiological and psychological changes that affect the couple's life, including their sexual and marital relationships, which can either deepen the couple's relationship or lead to separation. The quality of sexual life is a subjective concept based on an individual's understanding of the sexual aspect of their life, representing a dynamic interaction that evolves over time and according to circumstances. It serves as a means to explore the relationship between sexual problems and quality of life (
1-
6). The quality of sexual life changes during pregnancy, often decreasing with increasing gestational age. Additionally, factors such as the woman's age, education level, and whether the pregnancy is desired impact the quality of sexual life in pregnant women. Sexual behavior during pregnancy and postpartum can be influenced by biological factors (fatigue, dyspareunia, and back pain), psychological factors (depressed mood, negativity, and guilt), interpersonal factors (decreased sexual interest, unwanted pregnancy, dissatisfaction with interpersonal relationships), and fears and worries (such as fear of harm to the fetus, pain, premature birth, miscarriage, and bleeding during intercourse). According to Johnson's study, maintaining mutual sexual relations during and after pregnancy promotes physical health, well-being, and increased intimacy (
2,
7-
9).
Sex counseling is a form of talk therapy designed to assist individuals whose physical, psychological, personality, or communication issues affect their sexual satisfaction. It is a type of psychological counseling that helps individuals fully enjoy sexual relations with their partner. Sexual counseling improves the quality of sexual life by enhancing marital relations. During pregnancy, sexual counseling can lead to better emotional and physical adaptation for the couple, increase their sexual awareness, and ultimately improve the quality of their sexual life and compatibility (
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13).
The BETTER sexual counseling model, introduced in 2004 by Mick et al., offers a structured approach to addressing sexual issues in an oncology center (
10). It is now used in various clinical settings. A study in Iran demonstrated that the BETTER model significantly enhances women's sexual health compared to other models (
14). Similarly, a study in Egypt found the BETTER model to be highly effective in improving women's sexual health (
9). Various sexual counseling frameworks, such as ALARM, PLISSIT, Sexual Health Model, and PLEASURE, have been evaluated to address infertility-related negative consequences and promote sexual function (
15). However, no definitive information suggests which model is most effective in improving sexual function across all domains (
16).
The BETTER model provides a framework for discussing sexual issues arising from medical conditions. It consists of six steps that enhance health practitioners' knowledge and skills, facilitating a communicative process that reduces anxiety and stress while increasing sexual satisfaction (
2,
10). Unlike other models, this sexual counseling approach offers an opportunity to listen, assess, and guide women in just two sessions, making it ideal for the cultural context of Iran. Sexual self-disclosure and the removal of barriers to sexual communication between couples can improve the quality of sexual life and satisfaction (
11,
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19). By offering advice on sexual issues, mothers can be better prepared to adapt to changes during pregnancy (
20,
21).