When you only sign in to FamilySearch using your Church Account, you might think you don't have a FamilySearch account. But that's not true. No matter how you sign in to FamilySearch, you are signed in to your FamilySearch account. If you used your Church Account to sign in initially, then a FamilySearch account was automatically created for you (and also automatically linked to your Church Account).
Once you are signed in to FamilySearch using your Church Account, you can go to Settings and set your password for your FamilySearch account, and then you could sign in to FamilySearch websites or apps using your FamilySearch account.
It may seem like I am splitting hairs on this topic, but this distinction can be very important as FamilySearch adds more third-party login options. Facebook is now available, and others will be coming. If you casually use different third-party logins, and your third-party logins are not all consistently linked with the same email address, you could inadvertently end up creating more than one FamilySearch account behind the scenes. You could easily be surprised and disappointed to discover that your contributions, messages, and other account-specific details are not all connected to the same account.
Questions that can benefit the larger community should be asked in a public forum, not a private message.