Anonymous participant please follow the good advice
@John *********
gave you... Get the DTV visa as a dependent spouse before you enter Thailand. Your husband will SPONSOR you... so essentially Just 10,000 Thai baht visa fee along with the requirements as spouse... Marriage certificate. Look at your Thai Embassy or Consulate website for their requirements.
See section 5c bottom left column of the graphic below.
I believe that...
You are NOT going to be able to enter Thailand without the correct Thai Visa. Avoid the questions from Thai Immigration Officers upon arrival...