Irregular Periods & Pregnancy Symptoms: What Could It Be?

Irregular periods, headaches, fatigue, and frequent urination can be early pregnancy signs, but negative pregnancy tests may mean you're not pregnant or it's too early for hCG detection. Wait a few days and retest, or see a doctor for a blood test, which detects pregnancy earlier than urine tests.

Other possible causes include premenstrual syndrome (PMS), stress, infection, medications, or other medical conditions. Professional medical advice is essential for accurate diagnosis and treatment.