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menstrual cycles do vary slightly from month to month & changes in the timing or length of periods is due to stress, hormonal imbalances, or other health conditions. There is nothing to worry about, but if you experience persistent changes in your menstrual cycle consistently early or irregular periods it's better to talk to a gynec.

A TPHA positive re­sult at birth signifies potential syphilis infection in the­ mother. This bacterial infection ofte­n lacks noticeable symptoms, though rashes, fe­vers, and swollen lymph nodes may occur. If untre­ated, syphilis risks harming the baby, leading to se­vere complications. Howeve­r, antibiotic treatment can effe­ctively cure both mother and child. Se­eking prompt medical attention is crucial for prope­r diagnosis and care.

The first thing you should do is to take a test. Should your test result as positive, arrange for an appointment with an obstetrician/gynecologist (OB/GYN) promptly. If the test result is negative and you see that your period of menstruation still has not started by the end of a week, you should also visit a doctor to establish the cause of the delay.

there are SEVERAL reasons for delayed menstruation in teenage girls. Puberty timing varies widely. Hormonal imbalances can delay menstruation. Excessive exercise or underweight can impact menstrual cycles. Stress or medication can also delay periods Consult with a DOCTOR.. 

Since you characterized the symptoms, it could be possible that a STI has occurred. It is advisable to consult a gynecologist or urologist immediately and get tested so that the appropriate treatment can be administered on time.

Yes, a 24 year old girl can get pregnant 5-6 days before her period. This is because sperm can survive for up to 5 days in the female reproductive tract, and if ovulation occurs earlier than expected, pregnancy can happen..It is important to use contraception if pregnancy is not desired....Consult a healthcare provider for further ADVICE . . . 

Since you took the morning after pill multiple times within a month may have altered your menstrual cycle and caused a delay in your period. But there is still a possibility of pregnancy even if you have taken the morning after pill. Because emergency contraception is not 100% effective in preventing pregnancy, and repeated use of the pill within a short period of time may decrease its effectiveness.

t may be an indication of a hormone imbalance or some underlying medical complication that needs professional intervention. Go to a specialist for proper diagnosis and treatment.