Transferring from H1b to h4 and going back to H 1 b later

Hi! I am on H1b visa and full time with end client , my visa expires end of 2020. I am pregnant with my 2nd child and planning to take a long break upto 6 months in September 2019 and move to h4 visa. Now, would it be possible for me to get back to h1 b visa later after 6 months ( recapture my remaining h1b time period).
If yes, what would be the process. ( obviously not with the same employer)?

Thanks!

Yes, its possible. For process either research online OR contact your attorney.