sleep issues

It's so frustrating!!! I keep waking up at the same time every morning... between 2:30 and 3:30 and being wide awake.
I had a pregnancy earlier this year which I had an early miscarriage and happened too but I thought it was just down to stress. This time I'm not stressed but still making up.
Is this normal? Does anyone know about sleeping issues in pregnancy?
I'm 7 weeks in 2 days... so still very early on.