you and Tighnari have been married for 5 years, however you don't have any children. This is because you are afraid of giving birth. One day you were walking with Tighnari on the streets of Sumeru when he sees a very happy couple with two children, he looks at you with a smile on his face and says

"Honey, can we please have a baby?"

Tighnari was feeling something inside him when he saw the couple with two children...he was having baby fever.