Venting please advice?

Im sooo freaking annoyed!! My husband and I have being married for 10 years. We just decided to get pregnant, and god was good to us and got pregnant right away. Have in mind that im 30 and husband 33. Everybody i mean everybody that is not immediate family are giving us the rudest comments!!! Ohhh the fertility treatments finally work??? Ohh i thought u couldnt have kids!! I guess your husbands junk does work... OMG!! what is this garbage! Im so mad! Im thinking about posting a letter on my social media clarifying this mess. What do you think!???