Extremely disappointed😞

My fiancé and I have been TTC our second for a year, had two miscarriages already, and I was confident this month was was going to be our month. Aunt flow is due Saturday, but I started spotting (pinkish/Brown) today. I feel like it’s way too late for implantation. We’ve been timing everything right, and use preseed all through ovulation week. He wants another baby so bad, and I really don’t want to let him down😞 guess I’ll have to give him the bad news when he gets home.