Answer (1 of 7): If you ovulate later than normal in your cycle then implantation could occur the day after your period is expected.
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Can implantation bleeding occur four days after you miss your
How to know if you have implantation bleeding - Quora
Can I tell if implantation is happening? - Quora
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Can implantation start the day you are expecting your period? - Quora
I had unprotected sex 3 times in one day 4 days after my period
Can implantation bleeding last 5 days? - Quora
Can you find out you're pregnant before your period? - Quora
How is it possible to get pregnant the first day of your menstrual
How to know if you have implantation bleeding - Quora
If I had sex 10 days before my period but my period still came can
What Is Implantation Bleeding? Symptoms & Timing