A quick question

Claudia

I have noticed in the last 3-4 months a change in the menstrual cycle, that is, it no longer hurts before it comes .and After it passes:(( .But the main prb its After my period should go 2 or 3 days after I have pains like when I ovulate with vomiting symptoms, back pain, migraines, the whole thing. I took a test yesterday because I had these symptoms and it was negative but I know for sure I ovulated because today I have this and also still bleeding Does anyone know what is going on and if they have had or experienced a similar situation to mine?P.S:I took and pregnancy tst ,its negativ(((.

So i should start my ovulation window in 2 days