Hi!
IF you were my patient, I would want to investigate the cause of your weight loss--for example check your thyroid hormone level, etc. I would also want to do a growth scan for the baby to be sure that he/she is growing appropriately. If everything was fine, and the weight just came off because you are eating a healthier diet, or etc, then I wouldn't worry.
Depending upon your height, your weight may be appropriate.
Many women don't weigh more than that when they deliver--actually it can be a benefit.
Get it checked out though!
Dr B
If you're eating right, you should be fine(:
Your weight won't effect your babies weight. As long as you're healthy your baby will be.
Im 35 weeks pregnant and I lost 10 lbs 3 or so months in and gained 5 the past 2 months, so, I'm actually under my prepregnancy weight. My doctor said it want an issue so you should be fine.