Venting!!! But I should be grateful

This is a my BFN and it upsets me. I am on cd 42 with no period in sight and it gets my hopes up because your mind wonders off to the possibility of being pregnant. I see ppl saying they on baby number 3 or 5 and it’s just so easy for them to get pregnant. You look at your spouse and your pregnant and that’s just not my story. I have been married for two years and I do have a two year and I have 16 year. I just wanted someone for my two year old to play with as she gets older. And it just breaks my heart that I’m having a difficult time conceiving.