Chrissy Teigen -- My Sex-in-a-Day Record ... Let Me Do the Math

Chrissy Teigen needed to think LONG and hard to figure out her her all-time record for number of times having sex in a single day ... before giving us a mysterious response.

Chrissy was out in New York when we sprang the question -- specifically about her sex record with husband John Legend -- and for some reason she put us on hold while she went into a meeting, telling us ... "Ask it again."

50 minutes later we did ... and Chrissy finally gave up the goods.