Hello
Hydronephrosis will be dealt after delivery.
As far as baby weight is concerned, it'd be easier to comment by seeing the scan report .
Next Steps
1) dont stand for too long
2) while lying down, sleep in left lateral position or any side . dont sleep straight for too long as it may compress on the blood vessel and blood supply to uterus will be reduced .
3) additional calorie of 350kcal apart from your actual calorie has to be taken