Josei manhwa related

Can somene help me?

I was reading that josei manhwa but i stopped for a while cuz i was waiting for it to marinate and now i cant remember the title (●'◡'●)

So it goes like this,
The fl is a young woman who was maried off to a count. Then when her husband died at a war and she was killed by the brother of her husband. She goes back in time where her husband just returned to war and to him, that was the first time she got out of her bedroom ever since her nanny died (of a disease? Dont remember) he was shocked at that unexpected meeting. He said to his butler that everything his wife wants should be given to her cuz shes an important(?)person that costs him many things (even a fief(?))
She asks him to have a child with her but the man was hesitant because he thinks that his wife is still too young for child bearing and might suffer the same fate as her mother (that died of child birth).
The reason why she wanted to have a child with him was to change the future she suffered before and to have an heir for the county.

-fast forward-

War broke out and she is now expecting a child but he is yet to know because he was missing (as far as the wife knows cuz info abt the war is being intercepted. They even thought he's dead)

Then after some opportunity, the husband's army has finished the enemy in their side and marched through the estate to save and eliminate all the enemy armies that has been threatening the wife. But the husband hasnt cone back finish the beef with his brother (defeated then killed). And when the husband came home, he saw his wife being chased through the balcony by the 2nd prince and saved her.
She gave birth, died, and brought back to life cuz of her being a saintess. They had a boy

Character descriptions:

Wife - 19/20 yo(?), orange hair, green eyes.
Daughter of an influential aristocrat in their kingdom and was married off when she was 9 to her husband who was then 20(? Ig)
Husband- i guess he's in his 30s now, black hair, tall, dont remember his eye color.
He got his count title(?) because of his hard work and along with it, his land. He agreed to the marriage because hes asked by her father and its to support the 1st prince(for political power)

Uhhh ive read that not that long ago Mybe just a few months back. And i just remembered it now cus i wanna reread it. It wasnt saved to my lists