Effects of Meth use during first couple months of pregnancy?

My DD was prenatally exposed to Meth and tested positive at birth. She didn't have any withdrawals symptoms other than sleeping a lot (4 to 5 hr. nap) for the first 6 months. She is developmentally on target at 3 yrs. old, and a delight to be around. There are positive stories on babies exposed to Meth, with love and a safe environment, they succeed. I just think you have to take the risk and be prepared for anything that may come up later in life.