Opinions

Do you worry about others opinions about TTC? I am 20 years old my SO Is 21 and we live together, been together 3 years and want to start TTC but I am so so nervous about peoples reactions. How do I overcome this and respond to rude mean comments from guys at work ect? I don't want people to look at me as a 'uncapable' mother which I know my co workers will as they are all in their 40's and make rude comments about my age and call me a child all the time. Really getting me down.