Celebrity weddings, engagements of 2012

1 of 168: Jenelle Evans, a cast member on 'Teen Mom 2,' announced on her Twitter page on May 16, 2012 that she and on-again, off-again boyfriend Gary Head are engaged. She did not announce a wedding date.

'I'm the luckiest girl in the world to have @gary_head in my life,' she Tweeted, along with a photo of her engagement ring (pictured above).

'Did he get that out of a gum ball machine ??' someone asked her.

'No he def didn't,' Evans replied, posted a photo of a shopping bag from Reeds Jewelers.

Evans, who is from Oak Island, North Carolina, has a 2-year-old son, Jace, from a previous relationship. She and Head began dating several months ago and broke up n April, after which she reunited with her ex-boyfriend Kieffer Delp. She and Head later reconciled.

'Can't wait to see my fiance later :)' Evans Tweeted. 'Its so weird to say that lol.'

(Pictured: Gary Head, Jenelle Evans and her engagement ring, as posted on her official Twitter page.) (twitter.com/PBandJenelley_1)