Late, just irregular this month?

Hi! I’m 9 days late. Around 16/17 dpo… my tests are still negative.. I’ve had two very faint positives.. but they where the chepies the one was the blue dye and very faint and the other was the Walmart $.88 and it appears with in 10 min.. so it took longer. The rest have been negative. Some look positive but I know nothing is there. Could this be an irregular period? I have all symptoms of pms or pregnancy.. I have an appointment with my regular physician tomorrow (this was our first month trying, but I am 32, health issues when I do become pregnant, they want to discuss and keep an eye on me right away.) Has anyone ever got there BFP 19/20 days post? Sorry this was so long, just confused and hurt by the negatives like the rest of us. Merry Christmas and baby dust to all you ladies!