Could I have had a chemical?

Autum • Oct. 2020 ❤️

So I was getting pretty faint positives since 9dpo... and kept getting them all the way until 14 dpo. Some required tweaking, others didn’t. But they weren’t getting darker. Then on 15 dpo, AF was one day late. And I got a faint but deff more noticeable than any other of my tests on a frer. Even my DF saw it! Now I i have AF, it’s pretty heavy too.. heavier than normal. Do you think I had a chemical? :/ I know you need a doctor to say forsure, but I can’t help but wonder. It was multiple faints on many different test.. no progression.. now heavy AF.