Please help. Potential chemical I’m unsure

So I started getting extremely faints on FRER on Saturday 5/16

I continued getting these and they darkened a little

Between Saturday and Monday my blood levels went up 20% (not good but not the end of it (yet)..)

Anyways I took a test Thursday morning FRER and it was a tad lighter and I started having some mild cramps... light cramps.

Thursday night took these

Both in time frame and pretty diluted urine

I’m not sure what to think... please help

If it was a chemical wouldn’t these 25 miu test be stark?