daughter was born July and still don't have a period.

Hi,
Welcome to ehealthforum,
If you are not exclusively breastfeeding your baby, you might lose the protection of lactation amenorrhea. If pregnancy is suspected, look out for development of any new symptoms. You should consider visiting your gynecologist 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, further evaluation would be needed to look for the underlying cause for your absent/irregular periods. Treatment as appropriate would be started (based on examination findings and investigation results) to help you regulate periods. Take adequate rest. Drink plenty of water. Maintain healthy diet and lifestyle. If you intend to remain sexually active, consider visiting your gynecologist to get started on suitable regular (and safer to use during breastfeeding) birth control measures to be protected (after your periods). Be regular with birth control use as instructed. Avoid having unprotected sexual contact.
Take care.