my period has returned and the cramps are worst

Hi,
Welcome to ehealthforum,
If you are not on any form of regular birth control, and if you have been sexually active after your last normal periods, chances of pregnancy are possible and the second bleeding that you experienced could have been probable implantation bleed. Pregnancy chances are possible due to contraceptive failure, even if you use protection. Wait and watch for your next periods. If periods do not start within 10 days of expected period dates, or if you get abnormal periods, or if you suspect chances of pregnancy, 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 ruled out, and if you are not ready for pregnancy, but intend to remain sexually active, you should consider visiting your gynecologist to get started on suitable regular birth control measures to be protected (after your periods) as well as regulate your periods. Be regular with birth control use as instructed. Avoid having unprotected sexual contact.
Consider being 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.