http://www.whatsoeverisgood.com/5-things-every-convert-to-the-church-needs-to-understand/#comment-54

Here is my comment that is awaiting moderation. I couldn't help myself.

Number 6 – Be prepared for the nay-sayers. They do not want you to be happy. They will come at you with things the missionaries did not teach you. Things that were not essential to you getting baptised.

For example – Joseph Smith did have multiple wives, even wives that were married to other faithful men. His other wives were as young as 14 (or should I say a few months shy of 15 – sounds better than 14)
You can read about it on lds.org. – https://www.lds.org/topics/plural-marriage-in-kirtland-and-nauvoo?lang=eng

Another example it whether the Book of Abraham was a real translation. That the original papyrus was written by the hand of Abraham as stated in the beginning of the Book of Abraham. In the following essay published on LDS.org, we find that it was dated long after Abraham was living and the existing papyrus is really just a funerary ducument. But we need to remember the thruths that are in the Book of Abraham. The feelings we get when we read it. We know it is true.
Here is the link the the article on lds.org – a great read. https://www.lds.org/topics/translation-and-historicity-of-the-book-of-abraham

Another example the naysayers can bring up is how the Book of Mormon was translated. When we see paintings and articles of Joseph Smith, we often will see him studying the golden plates as he is translating them. Sometimes with the Urim and Thummim, sometimes without. One thing you should know as a recent convert is that there was another – more convenient way of translation that the Prophet used. You can read about the rock in the hat method here – https://www.lds.org/topics/book-of-mormon-translation I am sure it was so much easier for him to translate the golden plates using the rock in the hat. Heck, he didn’t even have to have the plates in the house when he was using that method. Makes you wonder why all the effort to save the records of the Nephites all those years if all Joseph had to do was use his peepstone.

It is always good to be educated on these different topics that you might get bombarded with.