The couple, who became engaged in August 2012, have finally planned their wedding, reported OK! magazine.
"It's really happening! Jen is excited beyond belief. She says it will be the best day of her life. If you try asking, she'll change the subject to keep everybody guessing. But one thing we know now, it will be a small affair," a source said.
"Neither of them wants a huge, glitzy wedding," the source added.