so exhausted...

this is cycle 16. i did opks. I am 14dpo today. af due any second. i tested at 8 and 10 dpo. bfn. i am 40. i had baby 1 for my husband in dec 2015. took us a year of really trying. now its been 16 cycles. my periods are perfect. never late. i should have started. should have signs. i have nothing. i fear this could be menopause. im scared. i havent had my stuff tested in years. i just lost ins. ugh. i give up. this was more of a rant than anytbing. just so heart broken.