But she added that she wasn't "freaking out" about it.
"I don't really think about things; I just do them," said Lavigne, whose hit "Girlfriend" was atop the Billboard Hot 100 chart while her third album, "The Best Damn Thing," topped the Billboard 200 with 286,000 in first-week sales.
"I'm just excited to have the record out and for everyone to hear it now. It's actually No. 1 in 15 countries, so it's a really exciting time for me. It's crazy."
Lavigne said she won't mount a full tour to promote the album until 2008. She will play some live dates during the summer and in the fall she'll film a starring role in "a dark kind of drama" whose title has not yet been revealed.