â¦longevity of seeds, the dormant embryo plant contained within the seed will lose its viability (ability to grow) if germination fails to occur within a certain time. Reports of the sprouting of wheat taken from Egyptian tombs are unfounded, but some seeds do retain their viability a long time.
Implantation bleeding-Spotting during pregnancy may be caused by implantation. Implantation bleeding occurs after the egg burrows into the lining of the uterus. As the egg implants into the lining sometimes a little bit of bleeding will occur.
Cause of Spotting During Pregnancy 6: Sex during pregnancy. Some women may bleed after sex during early pregnancy. This is because the cervix is very tender and sensitive and may bleed once it is irritated. Sex should be discontinued immediately if bleeding is seen.