Symptoms question

Nichole
So I've been trying to conceive this month and my last ovulation day was the 18. I feel that I'm probably not pregnant but my boobs are sore and I'm having a heavy cramping feeling in my pelvis kind of like the sensation I get on my period but my period isn't due for two weeks and I am always regular 30 days I have never been early and I've only been late when I'm pregnant.i also only have boob pain a few days before AF starts never two weeks and it's usually pain on the side whereas right now in feeling shooting pains in my breast all over and they are heavy and warm which is unusual for me. Do you guys think this heavy crampy feeling is an extremely early period or possible pregnancy?  I don't want to feel disappointed so I don't want to test to early. HELP!