Yes. Your doctor may refer you for a simple blood test to check your levels of FSH (follicle‑stimulating hormone). FSH increases as you enter perimenopause, so higher levels are a good indicator that you are approaching this phase of life. Home menopause testing kits are another alternative. They also test your levels of FSH without needing to go to the doctor's office. However, the best way to determine if you are in perimenopause is with the guidance of a healthcare professional. They can also consider any symptoms you might be having and make a more informed diagnosis.