Long-acting reversible contraception (LARC), including IUDs and the implant, are some of the most effective and low-maintenance birth control options available today. Many women search questions like: “Does it hurt?” “How long does it last?” “Will it affect my period?” “Which one is better for me?”
At KS Women’s Health Clinic, we believe in clear, judgment-free education so you can make the best choice for your body and your life.
Here’s everything you need to know.
What Are LARC Methods?
LARC stands for Long-Acting Reversible Contraception. These methods protect against pregnancy for years at a time, but can be removed anytime if you want to become pregnant or switch methods.
The two types are:
1. IUDs (Intrauterine Devices)
Small, T-shaped devices inserted into the uterus.
2. Nexplanon Implant
A tiny flexible rod placed under the skin of your upper arm.
Both are more than 99% effective, making them some of the most reliable birth control options available.
IUDs: Types, Benefits, and What to Expect
There are two main types of IUDs:
Hormonal IUDs (Mirena, Liletta, Kyleena, Skyla)
These release a small amount of levonorgestrel (a progestin).
Benefits:
- Lighter periods
- Less cramping
- Some women stop having periods altogether
- Last 3–8 years, depending on the brand
Copper IUD (Paragard)
Hormone-free.
Benefits:
- Lasts up to 10 years
- Great for women avoiding hormones
- Can also be used as emergency contraception (within 5 days of unprotected sex)
Common Questions About IUDs
Does inserting an IUD hurt?
Most women describe insertion as brief cramping. It lasts only a few minutes.
We use a gentle, trauma-informed approach and talk you through each step.
Can IUDs cause weight gain?
No—research shows IUDs do not cause weight gain.
Can an IUD move or fall out?
Rare, but possible. We teach you how to check your strings and monitor changes.
Can you get pregnant right after removal?
Yes. Fertility returns quickly once the IUD is removed.
The Implant (Nexplanon): What It Is, How It Works, and What to Expect
The implant is a matchstick-sized rod placed under the skin of your upper arm. It releases a steady, low dose of progestin.
Benefits:
- 3 years of protection
- No daily pill to remember
- Extremely reliable
- Brief, simple insertion (takes minutes)
- Private, no one sees it unless you show them
Common Questions About the Implant
Does insertion hurt?
You’ll receive a numbing injection first. Most women feel pressure, not pain.
What happens to periods?
Changes are common:
- Lighter periods
- Irregular spotting
- Some women stop bleeding altogether
These changes are safe and normal.
Can it be removed anytime?
Yes, removal is quick and done in the office.
Does it affect fertility?
No. Most women ovulate again quickly after removal.
IUD vs. Implant: Which Is Better?
There’s no “one best method”, only the best method for you.
Choose an IUD if you want:
- Lighter or no periods
- Less cramping
- A long-term option (3–10 years)
- Something placed in the uterus rather than the arm
Choose the implant if you want:
- A quick, simple arm procedure
- A hormone-only method
- Low maintenance with no periods to track
- A highly effective 3-year option
We can walk you through both and help you choose the best fit.
Are LARC Methods Safe?
Yes. IUDs and implants are considered safe for most women, including teens, women who have never been pregnant, and those with certain medical conditions.
You should always discuss your health history with your provider to determine which option is safest.
How Are They Inserted?
IUD Insertion
- Speculum exam
- Cervix is cleaned
- IUD placed using a thin, flexible tube
- Takes only a few minutes
Mild cramping afterward is common.
Implant Insertion
- Upper arm is numbed
- Small device inserts the rod under the skin
- Takes less than 5 minutes
- Small bandage placed over the site
No downtime needed.
Side Effects to Know About
IUDs
- Cramping for a few days
- Spotting for a few weeks
- Hormonal IUDs may lighten or stop periods
- Copper IUDs may increase cramps/flow at first
Implant
- Irregular bleeding or spotting
- Lighter or absent periods
- Occasional breast tenderness or headaches
Most side effects improve with time.
How Fast Do They Start Working?
- IUDs: Immediately if placed during your period; otherwise may require a backup method for 7 days, depending on type.
- Implant: Works within 7 days (or immediately if inserted during your period).
The KS Women’s Health Clinic Approach
We provide:
- Counseling on all options
- Gentle, trauma-informed insertion
- Thorough aftercare guidance
- Follow up, if you need adjustments
- Removal anytime if you change your mind
Birth control should feel empowering, not overwhelming.
Takeaway
IUDs and implants are safe, highly effective, and incredibly convenient birth control options. Whether you want lighter periods, hormone-free care, or long-term pregnancy protection, there’s a method that fits your lifestyle. The American College of Obstetricians and Gynecologists recognizes IUDs and implants as safe, highly effective forms of long-acting birth control for many women.
If you’re unsure which option is right for you, KS Women’s Health Clinic is here to guide you with compassion, clarity, and evidence-based care. Explore our birth control services here.
This article is for education only and is not medical advice. See our Medical Disclaimer.