Select and count help

I have 2 tables

TableA and TableB

I'm looping through and displaying all rows in TableA. I also need to do a count on TableB for all those with DeliveryStatus = 2. Currently I count all records and not that of the row in TableA i'm on.

My table's look like this

Table A
OrderID
OrderName
....

TableB
OrderItemID
OrderID
DeliveryStatus

I want this

Order ID: 1, Order Items Count: 7, Delivered Items: 4, Undelivered Items: 3
Order ID: 2, Order Items Count: 1, Delivered Items: 0, Undelivered Items: 1

Instead I get this

Order ID: 1, Order Items Count: 8, Delivered Items: 4, Undelivered Items: 4
Order ID: 2, Order Items Count: 8, Delivered Items: 8, Undelivered Items: 4