Pein can't possably be Konan. Pein is his own person. If you or anyone reading this has read up to the latest chapters then you know who he really is. I have several images that MIGHT
help clear things up.
This is pein's TRUE form. This is Nagato, the original user of the Rinnengan.
This is Pein's Rinnengan. The Rinnengan is considered the greatest of the three most powerful doujutsus. This Kekkei Genkai is said to have belonged originally to the Rikudou Sennin (Sage of the Six Paths), founder of the shinobi world and the creator of modern ninjutsu. A Rinnengan user can easily be recognised because his eyes will have several concentric circles surrounding the pupil. The Rinnengan can be translated to (Metempsychosis Eye) or (Transmigration eye).
Third and Fourth ones:
These are the six paths of Pein. These are the bodys of dead people that Nagato can controll (That's why they have alot of percings! The percings are chakra recevers!). Pein's first body (Yahiko), mainly used water element jutsu such as chakra sensing rain fall. Pein's second body (Fuuma clan), mainly used animal summoning techniques in attacks. Pein's third body that were summoned later, this thin body used taijutsu in attack and defence. Pein's fourth body which was summoned the same time as the third body, this fat body used ability to absorb any chakra attack. Pein's fifth body, primary use long range attacks. And Pein's sixth body... Well I really don't remember what that one does.
This is Pein's latest body, The Animal Path, Pain's newest body is the replacement of the body lost in the fight against Jiraiya. This body has a very young appearance and, unlike all the other bodies, was originally female, with its hair tied together in a sort of onion like bun at the top of the head and spikes of hair protruding out of it. It has one stud above the nose, studs on either side of the neck, a row of studs vertically down each cheek, a stud below each stud on the neck and two studs on each forearm. When Inoichi is searching through the mind of a man from Amegakure he saw that a man and a friend bring this body, dead and without its piercings, to the tower where Pain resides.
This body can be seen as a reincarnation of (or replacement for) Pain's second body, as both bodies were used primarily for "Multiple Summonings". It is seen calling forth a giant centipede, the multi headed splitting abilitied giant dog, a rhino and the other Pain's.