which sudafed is safe during pregnancy?

Nic
I'm 28 weeks and I called my dr this weekend bc I have an awful head cold. He told me sudafed and robitussin are safe. My husband came home with sudafed pe...so I've been taking that the past 24 hours. Now I'm worried I've been taking the wrong sudafed. Help!?:( which sudafed is safe? Regular or pe? Or both?