Doesn’t 1 Cor. 14:2 say that if we pray in a tongue we won’t know what we said?

Question:
Does not 1 Corinthians 14:2 say that if you would pray in a tongue to God that you would not understand what you are saying?

Answer:
The verse says, “No man understandeth him.” But why would you speak in tongues to God if you do not know what you are saying?