Adderall while pregnant?

Brittany • I`m a 25 year old mommy of 3. Just found out my 4th blessing is on his or her way. ❤
Hey guys, I'm still very early but don't see my doc till late November. Does anyone take adderall? I haven't taken it since I found out and I usually only take it 3 days a week when I work. But I've heard positive and negative and my research says that they never tested it but on lab rats it did increase miscarriage sometimes. 
Anyone else been through this while pregnant ?