Learning to Read

Oh my gosh. Logan is learning to read and it's kinda driving me nuts. It's like he has a block and can't get it right. He sounds everything out correctly and then says a completely different word with a question in his voice. he sounds it out and then guesses!! here's an example:

Bbbb....Aaaa....Ttttt. Bbb..Aaa..Ttt. TIT??? (wth?? TIT??!!)

He has a huge desire to learn and he is trying SO hard to get it right, bless his heart. He has letter cards that he got at school, each card has a letter and a picture of an object that starts with that sound. So, we have been putting the cards together to make words. He plays with them all the times and goes through the stack saying the sounds. He just can't put all the sounds together for some reason. I hope he figures it out soon, as annoying as it is..it breaks my heart that he's having trouble.