Feeling defeated...😓

My hubby and I have been ttc for over 2 years. We have an 8 year old son already but have really been wanting to have a 2nd child for a while. For the first time since starting to ttc I experienced what I was sure was implantation bleeding signs. I had the very light pinkish spotting, the sensitive breasts, a sudden feeling of nausea and dizziness, you name it. It lasted from day 22-27 of my cycle. The only other timeI have ever had this was when I was pregnant with my son. Well today was the moment of truth, due date for AF. And she showed her big ugly face. I've spent the last hour crying and trying to figure out what just happened. Just feeling so defeated right now. 😭