Singer-actress Jessica Simpson may have booked a place for her wedding day, but she is still unsure about the venue.

The 33-year-old is set to exchange wedding vows with former NFL player Eric Johnson in just a few weeks, and while they have booked the 78-acre Bacara Resort & Spa in Santa Barbara for their nuptials, the blonde beauty is still undecided as to whether she actually wants to get married there, reports femalefirst.co.uk.

"They've booked it for now. But Jess keeps going back and forth on locales," a source told Us Weekly magazine.

The couple has children Maxwell, 2, and Ace, 12 months, together.

They have the guest-list and theme finalised for the D-day.

"The wedding will be very rustic-chic," the source added.