She regurgitated, when do i try feed again?

[AkHerps]

Give her a week to two to help her stomach get back in order. And you might want to have a fecal done.

[ballpythonluvr]

It is usually recommended that you wait two weeks until you attempt to feed your snake again. You really should get a fecal done.

[mykee]

You don't.
More important than trying to shove more food into her face is to determine WHY she regurged.
Fix the problem and you won't have to worry about her puking up her meals anymore.
What is your husbandry like and please don't say it's "fine", healthy snakes whose husbandry requirements are met NEVER regurgitate.