20 Years Down the Wrong Path?

I have been married to the same man for nearly 20 years and I am nearly certain that I am a lesbian. Please indulge me and continue to read on. I do not have anyone to confide in and I am really in need of any thoughts and advice to assist me with this journey of self discovery. I married at age 19 to the first man I consented to have sex with. (I must have really been confused!!!) Why? Society and family expectations, perhaps. I do not recall there being any sparks of lust, love or infatuatio