Hi guys just needed help. My last period was April 30th. I had intercourse May 18th, is it possible…

Hi guys just needed help. My last period was April 30th. I had intercourse May 18th, is it possible i could be pregnant? I was unprotected and every ovulation calculator saids a different day for when i would ovulate. I have a 30 day cycle and my period last for 6 days. Im feeling some minor cramping and pain. Could that be implantation?