Disappointed in myself

Another month passes and still no pregnancy announcement. I was so excited this time around 17 days late. That’s the longest I have ever gone, most of the time its like 3 tops. But I was optimistic this time so I waited and took a test on day 12 not pregnant so I waited and took another on day 14 not pregnant. Then today as we were shopping for my husbands new truck. My back started cramping and being I was so late I wasn’t prepared. Thankfully today has been rather light so far. Brown egg like blood at first, now it’s a slight pink no egg like mixtures in it. I just feel so disappointed in myself as a women, we have been trying for so long now and just when I think maybe it’s our time bam Mother Nature comes and pays a visit.