Feeling discouraged

I have been spotting here and there for the last week, was nauseous, tender breasts, light headed, cramps, etc. I have been off the pill since May and my husband and I have been trying since then. AF was expected to come yesterday or today. I was unsure if the spotting was implantation bleeding or AF. I took a test Tuesday just to see and thought I saw a faint positive but then again could've been seeing things bc that's what I want. I decided to take a test early this morning (first urination) and it came back negative. I was so upset and feel like I am seeing how hard this could be. My husband and I are ready for this point in our lives and I'm stressed that it's going to be harder than expected. I decided to schedule an appt with my OBGYN but she can't see me until end of Oct. 

This is our first time trying. I'm nervous that me being on the pill for 10+ years caused this or something. Of course I'm thinking the worst but I know we have only been trying for 5 months and this is more common than not. 

I'll just continue to track everything and we will keep trying and will look forward to the appt at the end of the month. Any advice/ positive vibes would be great!