Panadol, Panadeine, and panadeine Forte are all OK to take during pregnancy.
Panadeine and panadeine Forte both contain codeine. Just be aware that Codeine can cause constipation. Also you should not take more than 4gms of Panadol in any 24 hours. Panadol, Panadeine, and panadeine each contain 500mg of Panadol, therefor you should have no more than 8 tablets of any of these drugs in a 24 hour period.