how do you ladies that are TTC deal with people's comments about TTC!?!

I will be 29 in August and I have wanted a baby for a LONG LONG LONG time. My husband and I have been together 7 years but have been married since October. We graduated college, wanted to get established in our careers and then we got married. I openly voiced my want for a baby for a long time. After we got married and started trying everyone was curious and would ask when are you guys going to have a baby and you smile and laugh hopefully soon and now after almost 7 months of trying I feel like I might explode on the next person who asks. I get comments like "wow, shouldnt you go see a doctor", "when are you going to see a doctor about infertility" "maybe your medicine is making you infertile" "use this calendar" "this position" "put your legs in the air" "there's so many pregnant women right now" (as u want to throat punch them) "better hurry" I feel like I need to wear a shirt "TTC keep your ignorant ass comments to yourself" ....their comments are like me walking around "wow, your fat" "you need a nose job" etc they are just plain insulting..... any tips? I just keep saying "when it happens". Ppl taking about being infertile makes me start wondering wow what if something is wrong with me. Now when AF shows up I just bawl my eyes out in the bathroom. I just need tips on how to deal with the comments or maybe it's just my fault because I openly talked about wanting a baby ALL THE TIME!?!