Implantation??

Mercedes
So Ovulation happened the 30th. Hubby and I baby danced all around my Fertile week. Yesterday and today, days 6&7 post ovulation I've been experiencing cramps but no spotting so far. Today I had a very bad headache for a few hours, stuffy nose( maybe a cold coming on) light cramping for like 10 mins at work . On my way home from work the cramping started again only longer time now over 1/2 an hour. Has this happened to anyone? I'm not due for AF till the 17th of the month.😬😬😬😕😕😕