AF came 2 days early...now I'm depressed

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TTC is so stressful. Some people don't understand the rollercoaster of emotions that women go thru thru trying ... One moment your nervous and anxious waiting in the TWW then u get excited when ur feel a little nausea or more tired than usual and BAM!!! AF shows... 
I know that when people ask when I am going to have a child or ask if I am pregnant just because I say I feel a little sick don't mean any harm but it still hurts when I get that BFN and I still have resentment because I allowed them to get my hopes up.. It's so much easier for people who have had children already with no complications to say "it will happen don't worry" or "just try not to think about it" but they have no idea how hard this emotional rollercoaster is to ride.....