Really confused...

Kalla • 💙 Feb 2014 🎀 April 2018 Beyond blessed💕💕💕💕
So me and my husband are ttc #2. We've only been trying for 1 month. I haven't been on any kind of BC in 4 years. I've always been very regular to the hour. I was supposed to get my af last Tuesday (2/7) and I'm now 7 days late. I've taken quite a few tests and they've all come out negative. Being late is very unusual for me. I NEVER miss my period. I've been experiencing pregnancy symptoms. Mainly fatigue, cramps that come and go, headache, etc... My DH is convinced I'm pregnant but the tests are just not detecting it.  I'd love to think so too and be excited but I just don't to wanna get my hopes up until I'm sure. So my question is... has this ever happened to anyone and it turned out that they were in fact pregnant? How long did you wait to make a doctor's appointment? How long did it take for you to get a positive? I just want an answer 😫