Thyroid & Trying To Conceive

So when I was little I had thyroid & I was on medicine for years & the. my doctor took me off cause it was normal & I was looking on the internet & it says that people w/ Thyroid problems it's harder to concieve cause of the hormones & I wanted to know what I should do if I should talk w/ a doctor & see what's going on cause I've been ttc for about 7-8 months & still nothing & I'm afraid I won't be able to concieve :( help? & suggestions please <3