symptoms include: fatigue, swollen/tender breast, nausea/vomiting, back pain,headaches,frequent urination
Other possible causes of light vaginal bleeding
include:(1) actual period which may lighter than normal, this can happen in some persons (2) infection (3) lighter periods can also occur as a result of contraceptive
To determine whether you are pregnant, you will need to do a pregnancy test. Some tests will detect small amounts of B HCG (hormone produced in pregancy) and can be done early.
I hope this helps you