NEW YORK (AP) — When most of the U.S. went into lockdown over a year ago, some speculated that confining couples to their homes — with little to entertain them beyond Netflix — would lead to a lot of baby-making. But the statistics suggest the opposite happened.

Births have fallen dramatically in many states during the coronavirus outbreak, according to an Associated Press analysis of preliminary data from half the country.

The COVID-19 baby boom appears to be a baby bust.

Nationally, even before the epidemic, the number of babies born in the U.S. was falling, dropping by less than 1% a year o...