TTC and let down a lot

Hi, I'm not sure if this is the right place to post this, but I don't know who to ask. And I'm so tired of asking friends with kids only to have to tell them no, I was wrong. I've been off the pill for a year now, and my AF became even more regular than before (it used to be 7 days with 3 days early or late, after the pill it was 4 days every month, 30 day cycle.) I thought I was pregnant back in June, I was 8 days late. But I wasn't. Had the heaviest period I've had since being off BC. Then back to normal. Except my cycle seems to have gotten longer. I'm late again. And I haven't had a single PMS symptom that I normally get, but I've had headaches and I've been dizzy about every morning. No sore boobs, but they're hard more often now. And I've been having to pee more frequently, but not "a lot." As well as shortness of breath from weird things. Do you think I could be pregnant, or does this have to do with my cycle lengthening? I want this very badly. All answers are appreciated, thank you!