Help! I am very confused. AF was due on Sunday night at CD 35,I did a test on Monday and it was negative.

Last night I had a spot of blood when I wiped so I thought it was AF, got upset (as you do) then took the proper precautions. But there has been nothing at all since then. The onlt thing is I feel very crampy and sore in the stomach. I did not test this morning as I didn't want to get my hopes up.

Could that have been implanation bleeding or does it mean that AF is on her way? I'm a little scared to test as last time I m/c the next day. I didn't have this light spotting then though. Sorry for blabbing on.