Is this normal ?

so im engaged , & we’re trying for a baby , & the medicine I’m on has side effects to it , mood swings being one of them , well here lately (the past 6 days) i just ain’t been happy , every time my fiancé wants to love on me , im just like “eww get away from me” , & he gets so upset , like it breaks his heart , I don’t mean it intentionally because I love him with all my heart . Will this get better ??