I have had implantion bleeding with all 3 pregnancies (weird since it's rare) All 3times it was right when I would have expected my period. The first one I thought it was a weird period, the second time I knew what to expect so I tested and it was negative. It wasn't until the next month I missed my period and found out I was pregnant. The third time I waited a couple days and it was negative. Then about 5 days after that I got a bad headache and felt really yucky. I tested again and it was postive. Everyone's cycle is different. Good Luck!!!

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