Your partner is called your fiancé (pronounced "fee-ahn-say") if you are a woman, and your fiancée (pronounced "fee-ahn-say") if you are a man.
These terms are derived from the French word "fiancé," meaning "betrothed." They are traditionally used to refer to someone who is engaged to be married, regardless of their gender.
However, in recent years, some people have started to use the term "fiancé" for both partners, regardless of gender.
It's important to note that the use of these terms can vary depending on personal preference and cultural background. Ultimately, the most important thing is to use the terms that feel most comfortable and respectful to you and your partner.