Before Mirai 

In later episodes of Part II, Kurenai is usually seen with a ring on her left ring finger. It's unclear if it's a wedding ring, an engagement ring, or something else. The ring was first seen while Kurenai was worried about Asuma during his battle with Hidan. After Kurenai is revealed to be pregnant, she is always seen wearing the ring. The ring first appears in the manga after the reveal of her pregnancy. 

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Kurenai is like one of the models in Naruto where a woman must face independence and keep fighting...always be strong. Losing someone is just part of life. It gets better.