Can a test line get darker in the same day?

Question

I took 2 FRER this morning and there are faint lines... i want a darker line before telling my fiancé. Could a darker line happen later today? Or is that like impossible?
Anybody have any luck testing again the same day and getting a better line  ?

Answer

I did but I made sure to hold my pee for as long as I could and it got darker.

Answer

Some people do but hcg doubles every 48-72 hours. If you catch the hcg right before it doubles that's how you'll get a darker line later but it's hard to say if you will. Your best bet is to hold urine for well over 4 hours with no liquids intake and retest. The longer the better.

Can a test line get darker in the same day?

Let's Glow!

The Top Baby Tracker App: Embrace New Beginnings with Tender Care

The Top Fertility Tracker App: Your Path to Achieving Pregnancy

The Top Pregnancy App: Nurturing Your Journey to Motherhood

The Top Period Tracker for Empowering Your Menstrual Health Journey