Could it be??

So I’m supposed to start my period on the 22nd this month but I have no clue when I actually ovulated ... I took an opk on the day Glow said I was predicted to ovulate and there was a vvfl but it wasn’t positive. I’ve been getting really bad cramps and back pains. My boobs are sore and I’ve been a little nauseous and haven’t been able to sleep very well.

I took a pt test this morning and it was negative. Is it too early to test? Could I be pregnant? Cause my baby fever is kicking in full swing and me and my SO have been ttc for almost 2 months now.