DPO symptoms

Hi, I am currently TTC and I'm at 8dpo currently. I've been having some weird symptoms over the past couple days. Wondering if anyone else experienced these before getting a BFP. With my first child, it wasn't planned so I wasn't paying attention to things like I am now. I've had the usual sore breasts, headaches, and crazy dreams which I know can be normal, but today I started having a dull achy cramping pain in my lower abdomen, along with a stinging feeling around my uterus. AF is due on the 30th so I'm unsure if I'm just having a really crazy hormonal outbreak before AF or I could be pregnant! Anyone experiencing something similar with the stinging?