the next generation has begun in my family

Two weeks ago, my sister gave birth to a fine healthy boy. When I heard this news at that moment , I got shocked, honestly! Though I knew she was going to have a baby in October and the day was near the corner, it was still weird to me. Because a new life joined to our family, and he even is a stranger to me. When you read this, you may misunderstood I don't like my nephew; in contrast, I love him but I do really bothered by my strange feeling. Because my sister is the first one who had a boy friend, first one to get married and first one to have a baby, and these are all new to me. Though I am not the one who experienced those things, somehow I know my life has already moved to the next stage. I attach my cute nephew's photo.