headachs every day, breast is tender niple kinda a lil sore

Hi,
Welcome to ehealthforum,
The early and altered bleeding that you experienced could have been the implantation bleeding (if you are pregnant). The next periods that you had could have been the decidual bleeding (if you are pregnant). The symptoms that you describe (headaches, tender breasts, sore nipples, feeling sick, changes in appetite, changes in food preferences, abdominal cramps, back pain, increased tiredness, disturbed sleep) could suggest early pregnancy. The urine pregnancy tests done early in pregnancy can show you false negative results as the kits are calibrated ones, so unless the hormone levels in urine reach a certain level, they do not show positive results. Look out for development of any other new symptoms if pregnancy is suspected. If you suspect chances of pregnancy, or if the symptoms suggestive of pregnancy are persistent, consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). if pregnancy gets confirmed, ultrasound scan done would help to look for the gestational age and viability. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Maintain healthy diet.
Take care.