If you see a dark line on your belly during pregnancy, it's nothing to worry about. It's called the linea nigra and will likely fade soon after your pregnancy.
What's the dark line on Rihanna's pregnant belly? The linea nigra explained
Linea Nigra: What It Is, Causes And How To Get Rid Of It - MomJunction
Linea Nigra
What is the black line on your stomach that appears during pregnancy? Why can't you really see it otherwise? - Quora
Early pregnancy line on the stomach - Linea Nigra
An Ode to Rihanna's Linea Nigra and Embracing a Proud Pregnancy
Linea nigra: When the pregnant belly line appears and why
The Milk Booster - The dark line on your pregnant belly is the linea nigra, sometimes called the pregnancy line. About 80 percent1 of pregnant women will see the linea nigra form
Pregnancy Line Appearing On Belly - Cordlife India
What is Linea Nigra? Your Pregnancy Belly Line Explained! - italianpolishmomma.com