
What’s “normal”?: menstrual cycle length and variation
The menstrual cycle is more than just your period—it’s the rhythmic changes of the your reproductive system.
Laurie is a science content writer-researcher for Clue. She is a nurse practitioner specializing in reproductive and sexual health. Laurie has a passion for empowering people with knowledge about their bodies so they can live their healthiest lives.
Preferred birth control: Whatever someone feels comfortable and confident in using.
Favorite reproductive health fact: The ovaries of a female fetus contain 6-7 million eggs by the 20th week of pregnancy—the most they will ever have. At birth the number has dropped to 1 million, and by puberty it’s down to about 400,000.

The menstrual cycle is more than just your period—it’s the rhythmic changes of the your reproductive system.
How the past affects present day obstetrics
What is "normal" vaginal discharge? Everything you need to know, from color, to consistency, to odor.
How different types of hormonal birth control may affect your skin and hair.
Most antibiotics will not interfere with your hormonal birth control method. Here’s what you need about rifampin, which can make...
How androgens, like testosterone, affect everything from menstrual cycles to libido, and how to know if your levels are normal....
Hormonal birth control is very effective, especially when used consistently and as prescribed. But human error, among other factors, can...
Progestins are synthetic forms of the body’s naturally-occurring hormone progesterone.
Here’s what the research says on every method.
Some say hormonal birth control negatively affected their mood, making them feel depressed, anxious, or irritable. You may also hear...
Understanding the cycle is important for your overall health. We break down the phases and hormones of the menstrual cycle.
Is it painful to have an implant inserted? Will the implant get lost inside of me? Will the implant affect...
The coronavirus pandemic might impact how you can access birth control. Here’s the latest information on contraceptive access during coronavirus...
The significance of period blood color is commonly misunderstood.
The best way to work around PMS is to figure out your unique patterns.
How testosterone, top surgery, and binding affect breast cancer risk.
Whether you’re undergoing hormone therapy or not, here’s what you need to know about preventing pregnancy.
Many people believe that hormonal birth control causes weight gain, but the research is not so clear cut. Here's how...
Getting pregnant when you have PCOS can be a challenge, but treatments are available to help.
People with menstrual pain often look for other alternatives to painkillers and birth control.
From getting a good bra to trying meditation, find out what you can do to relieve the discomfort.
Lumps, pain, and nipple discharge. What's normal and what you should get checked out.
Is it painful to have an IUD inserted? Can an IUD get lost inside of me? Your questions about...