13dpo still BFN

So I'm 13dpo today and my tests since 11dpo have all been negative. We had sex every other day the entire month and I know I ovulated on the 31st because I was using OPKs. AF is due on the 15th and I'm just unsure what to think right now. I don't usually have any symptoms for AF other than being moody. I haven't felt anything like that this cycle. I've actually been generally happy for the past couple weeks. I have light cramping at times and my boobs are sore when putting on and taking off my bra...but that's it. I'm also sick, I was diagnosed with an upper respiratory infection on Wednesday so I'm on medication for that. Other than those things, I don't feel any different. Just not sure what to do right now.

I know every pregnancy is different but idk... My last pregnancy I just knew. It was the day I was supposed to get AF and I usually get her in the middle of the night, she wasn't there. And I just sat there and I was like, I think I'm pregnant. Sure enough I took a test and there is was, 2 lines. Also no symptoms that time. I ended up having a chemical a week later tho.

I just don't know what to think right now.