you have abdominal cramps and pinkish vaginal discharge
now, and you are trying for the pregnancy
your expected date is still 1 week far, wait will that date and if you dont get the regular periods, the present bleeding could be a implantation
bleeding.. do urine pregnancy test with early morning urine sample and serum HCG
levels, which is conclusive.. see your obstetrician in any case.. all the very best..