Jessica Biel says being engaged is \"a very interesting period\" in her life. The actress became betrothed to her on/off boyfriend Justin Timberlake several months ago and has spoken of the exciting time she is currently experiencing. But the star added that she is trying not to let expectations of her future as Mrs Timberlake put too much pressure on her. \"I am undoubtedly in a very interesting period of my life. I\'m trying to think about the present moment without putting too much pressure on thinking about the future,\" she told French magazine Gala. Jessica also revealed that her pop star fiancé designed her engagement ring to look like a vintage band. The square cut diamond has an art deco feel, but was in fact designed from scratch by Justin. \"It looks like an old ring but it is not. He drew it himself to look like that,\" she said. The brunette beauty also put an end to speculation that she has already chosen her wedding dress. Jessica set tongues wagging when she was spotted at Paris Fashion week and the rumour mill suggested she may have picked an Elie Saab creation. Unfortunately, the star added that she will keep any further details about the gown under wraps. \"Well, if you want to know the truth, I haven\'t found the dress yet. You won\'t know anything more for now, because it is really personal,\" she said.