As Neils Bohr showed, it is possible for electrons to move between energy levels. Light contains energy. If a photon of light strikes an atom, it is possible for the energy in the light ray to be transferred to one of the low energy electrons moving around the atomic center.
Spotting before a period is due â reasons for spotting before a period can be implantation, from a cyst or a short luteal phase and impaired egg quality. Spotting in between cycles â this is a difficult term to answer but often means your cycles are growing shorter; often with perimenopause.
Ovulation: The shift or hormones at ovulation can cause spotting. The spotting is not necessarily associated with conception but if you had unprotected sex around the time of ovulation spotting does not rule out conception. If your period is late, check a pregnancy test and repeat it in 3-5 days if it is negative. Hope this helps. ...Read more.