Read the following context and choose the best option to answer the question.
Context: He wanted kids , he wanted to be a dad , and if Linzi was pregnant , than that was wonderful . Sure , they 'd only been married for a few months , but they 'd been together for eight years . This was n't something they could n't handle . So with Linzi in the bathroom , Billy was sat at his desk , chin in his hands as he waited .
Question: What may Billy be thinking about as he waited for Linzi ?
Options: 
- That their other kids were over eight years old and excited about the baby .
 - That he wanted to be 100 % sure that having a baby now was the right thing to do .
 - He could n't believe that he and Linzi had been married for eight years now .
 - None of the above choices .


That he wanted to be 100 % sure that having a baby now was the right thing to do .