Travis Kelce was secretly planning to propose to Taylor Swift for months, Page Six has learned.

A source exclusively tells us Wednesday that the Super Bowl champ began preparing to get down on one knee about six to eight months ago.

We’re told that the timeframe was needed to make sure jewelers had enough time to make the pop star’s one-of-a-kind ring , which “took a while.”

Although it’s unclear if Swift, 35, had any input on what her dream ring would look like, our insider speculates that Kelce, also 35, likely pooled her best pals for some input.

Page Six broke the news that the Kansas City Chiefs tight end asked for the “Lover” singer’s hand in marriage with an old mine brilliant-cut sparkler with Kindred Lubeck of Artifex Fine Jewelry.

The elongated stone, which is set on an

See Full Page