Can I work with Pending H4 EAD application with USCIS with valid I-94**

H4 and H4 ead are pending, and I got my -94 extended till 2013. Can I work? is Automatic EAD (180) applicable for me? do I need to get the notice of action saying my EAD eligible for 180 from USCIS?

The only requirement for 180 days automatic extension is that your H4 I-94 should be valid and that you applied for EAD renewal before the expiry of your current EAD.