That would not be according to my limited understanding, Jules.

The only people who have to spend time in hell, "purgatory", are those who do not accept the atonement when they have the opportunity in this life.

If you receive your C&E, even if you sin afterwards (almost a sure bet that you will) you do not personally have to suffer for those sins, Christ already paid that price.

D&C 132:26 - Verily, verily, I say unto you, if a man marry a wife according to my word, and they are sealed by the Holy Spirit of promise, according to mine appointment, and he or she shall commit any sin or transgression of the new and everlasting covenant whatever, and all manner of blasphemies, and if they commit no murder wherein they shed innocent blood, yet they shall come forth in the first resurrection, and enter into their exaltation; but they shall be destroyed in the flesh, and shall be delivered unto the buffetings of Satan unto the day of redemption, saith the Lord God.

3Ne. 12:45-48: That ye may be the children of your Father who is in heaven; for he maketh his sun to rise on the evil and on the good.
46 Therefore those things which were of old time, which were under the law, in me are all fulfilled.
47 Old things are done away, and all things have become new.
48 Therefore I would that ye should be perfect even as I, or your Father who is in heaven is perfect.

Heb. 6:1-6 - Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; not laying again the foundation of repentance from dead works, and of faith toward God,
2 Of the doctrine of baptisms, and of laying on of hands, and of resurrection of the dead, and of eternal judgment.
3 And this will we do, if God permit.
4 For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,
5 And have tasted the good word of God, and the powers of the world to come,
6 If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God fresh, and put him to an open shame.

D&C 93:30 - All truth is independent in that sphere in which God has placed it, to act for itself, as all intelligence also; otherwise there is no existence.