What is really going on ??? 😩

My boyfriend & I have been ttc this month . These are the days that we had sex . I also used clearblue ovulation kits as well to help to determine my fertile & ovulation days! I've been having mild cramps everyday . My breast are fairly have a little amount of pain .Today before leaving work I had a small amount of pinkish blood on my tissue . Can someone tell me what's wrong with me pleaseeeee??? My cycle don't suppose to come on until another week or so . So can someone please tell me what's wrong ??? 😩🤔