So I as well attempted to sweep my private key from Electrum(Windows) into Coinomi(Android) to get my BCH.
Followed the instructions, and it seemed to go through just fine. I had some coins under Receiving, and under a Change address. I sweeped both of those, and Coinomi didnt throw any errors, nor did it say it was empty or anything like that. It loaded, said it was creating a transaction, and seemed to finish, taking me back to the main screen of the BCH wallet. But no transaction was created, nor do I have any more BCH. Some people here said to try expanding the Used addresses section, and sweeping that. Electrum said it was empty, with 2 Tx, but I tried anyway. Coinomi then said it was empty as well, with an error. Seems to make sense.

But I still have nothing. Of course, I just did it. Maybe it takes time? I will post again later if anything happens.