How to create ForeignKey without data with laravel

I'm creating a system and I have two columns: empresas and usuarios . The usuarios.id_empresa does is the foreign key of empresas.id_empresa , however, some data of the two tables are filled in simultaneously and after the registration is done the other information can be inserted. However, if I run php artisan migrate without having data in the empresas table it appears the error that can not make that connection between the tables precisely because empresas does not yet have data. How to solve this?

The log furmulary will have the inputs (between relatives on which table it belongs)

Name (users) Company (companies) Phone (companies) E-mail (companies) password (users)

Notice that this form will populate two tables at the same time, so I need to reference usuarios.id_empresas in empresas.id_empresa .

public function up()
{
    Schema::create('users', function (Blueprint $table) {
        $table->increments('user_id');
        $table->integer('user_empresa')->unsigned();
        $table->string('user_nome');
        $table->string('user_email')->unique();
        $table->string('user_cpf')->unique()->nullable();
        $table->string('user_rg')->unique()->nullable();
        $table->string('user_telefone')->nullable();
        $table->string('user_senha');
        $table->boolean('user_ativo');
        $table->string('user_permissions');
        $table->integer('user_profile')->unsigned();
        $table->timestamps();
        /* $table->foreign('user_empresa')
                 ->references('empresa_id')
                 ->on('empresas')->onDelete('cascade');*/
    });
}

public function up()
{
    Schema::create('empresas', function (Blueprint $table) {
        $table->increments('empresa_id');
        $table->string('empresa_nome');
        $table->string('empresa_email')->unique();
        $table->string('empresa_cnpj_cpf')->nullable();
        $table->string('empresa_telefone');
        $table->boolean('empresa_trial')->default(1);
        $table->boolean('empresa_ativo')->default(0);
        $table->boolean('empresa_cad_completo')->default(0);
        $table->string('empresa_plano')->default(0);
        $table->date('empresa_expira');
        $table->timestamps();
    });
}