Cramping

I’m not sure how many DPO I am, my cycle is all messed up this time.

I’m cramping a lot, but they’re not period cramps. It’s like dull achiness in my pelvis. We haven’t been TTC religiously this month since things have been so weird, so I don’t think that I’m pregnant. But if I’m not pregnant, then I think this pelvic discomfort is concerning- like an infection or something?

Could this cramping/discomfort be a sign of pregnancy? Or could it be a sign of infection or something like that?

I’ve taken a few pregnancy tests and they’re all negative.