No, that sounds very reasonable to me. Everything I've read/heard says not to lose more than 2 lbs/wk, and your goal is even less stringent than that. You can do it! The first 5 lbs. will be mostly water anyway and will come off fairly easily; the next 10 will be harder but very doable. I would up your exercise to at least five times a week, though. It doesn't have to be the gym. Walk, ride the trainer, whatever, but just get moving as often as possible to kick your metabolism into high gear. Good luck!
Emily
Emily
2011 Jamis Dakar XC "Toto" - Selle Italia Ldy Gel Flow
2007 Trek Pilot 5.0 WSD "Gloria" - Selle Italia Diva Gel Flow
2004 Bike Friday Petite Pocket Crusoe - Selle Italia Diva Gel Flow