Stargazing

Lance Armstrong: Sheryl Crow's biological clock apparently "ticked" him off

Tick, tick, tick.

That's the sound that made

Lance Armstrong

run for the hills when he broke up three years ago wtih

Sheryl Crow

.

The Tour de France stud tells all in "Lance," out in July.

The New York Post gives a sneak peek.

Armstrong apparently told author

John Wilcockson

that after he and Crow got engaged in 2005, two weeks before her 44th birthday, their relationship became "kind of a struggle."

"She wanted marriage, she wanted children; and not that I didn't want that, but I didn't want that at that time because I had just gotten out of a marriage, I'd just had kids [Luke, Grace and Bella]," Armstrong, 37, reveals. "Yet we're up against her biological clock - that pressure is what cracked it."

He said they went to a counselor to try to settle their differences, "but really there's no way to counsel that situation.

"Because if somebody wants a child - man, that's the greatest gift you can give to a woman - so who are you to stand there and say I don't want one? So we were at different points in our lives. We were not compatible on that issue."

After they broke up, Armstrong dated several women before he "gifted" his latest girlfriend,

Anna Hansen

, with a baby, due next month.

In May 2007 Crow adopted a two-week-old boy she named

Wyatt Steven Crow

.

| Posted by Lisa Gutierrez, The Star

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