currently in am on h4 but i hv my h1b active

can i work immediately my transfer is initiated or i have to wait until the petition is approved.Can someone please answer my question. Now that premium processing is stopped i need to understand if i have wait for about 6 to 7 months for my h1b transfer to get approved or i can work immediately my application is sent to USICS

If you are on H4 now, you have to wait till the change of status gets approved.