Vivek's wife Priyanka is three months pregnant and the baby is due in February-March next year.
"I am thankful to God for everything. This year I am doing quite a few films. Also, there is some good news at home. God has been kind to us...There is good news also at my sister's place. There is a lot of excitement at home. I do feel all the more responsible now," Vivek told reporters here.
After becoming parents, relationship between spouses too changes, feels the 36-year-old actor.
"It is phenomenal...I can't explain it in words. It is a beautiful growth of a relationship between man and woman."
In 2010, Vivek tied the knot with Priyanka Alva, daughter of former Karnataka Minister Jeevraj Alva.