When I was pregnant with my second, people who had over one kid welcomed me into their club but also gave me their fair share of advice.
They warned me about how the work doesn't double; it's exponential. They told me I will experience an unimaginable level of tiredness.
While you're here, watch the things people say before having kids. Post continues after video.
So I knew all of that. But there were many things I didn't expect once my son was born, things no one could really explain to me until I experienced it myself.
Constantly acting as a referee.
When my son was a baby, my daughter didn't interact with him much. She ogled at his little feet and thought he was this blob of flesh that magically appeared in her home after a weekend with grandpa and grandma.
There were moments when I could sense she was jealous of how much time I was spending with the new baby. However, she had no ill feelings toward him.
Jump forward a couple of years and my son is now a running, talking, punching and kicking little fellow. And so is my daughter. There isn't a day that goes by where I have to physically separate the two. And it always happens when I least expect it.
They would be quietly playing in the living room and suddenly, I'll hear a scream, cry, slap or thud and I have to quickly figure out how to stop them from tearing down the house.