It is not uncommon for some men to experience a decrease in sexual desire during their partner's pregnancy. There can be several reasons behind this change, including concerns about the baby's safety, fear of hurting the mother, anxiety about the changes happening in her body, or simply feeling less comfortable with the idea of sex during pregnancy. It is important to have an open and honest conversation with your husband to understand his specific concerns and reassure him that it is normal for sexual desires to fluctuate during this time. Exploring alternative ways of intimacy and finding ways to connect emotionally can help maintain a strong bond between you both during this period. Additionally, seeking professional guidance from a therapist or counselor who specializes in couples' issues may provide valuable insights and support for both of you.