You can try, but the second urine is usually diluted if you drank water, so you might end up with a confusing faint line. Save yourself the double-testing expense and just wait for the morning. Trust me, I had to double everything with twins!
Testing early morning is best, otherwise you might get a faint line and stress yourself out. I remember running to the bathroom with terrible nausea in the morning and trying to pee on the stick at the same time. Definitely wait for the first morning pee!
Honestly, the first morning urine is always the best because hCG concentration is highest. If you use the second urine, the line might be very faint or even show a false negative. Better to wait until tomorrow morning and do it properly.
When I was trying to check, my mother made me wait for the next morning to use the very first urine. It's much safer and gives a clear result without any confusion. Just sleep early tonight and check first thing tomorrow.
Beta, always use the first urine of the morning for the most accurate result. In our times, we didn't have these kits, we just waited for missed periods and drank warm ginger water for digestion. Just be patient and test tomorrow morning.
The first morning urine is recommended because it has the highest concentration of the pregnancy hormone, especially in very early days. After going through IVF, I know how hard it is to wait even an hour, but try to wait for tomorrow morning for a reliable result.
Pehle peshab se check karogi toh bilkul sahi pata chalega behen. Doosri baar mein chemical thoda halka ho jata hai toh report sahi nahi aati. Kal subah hi check karna, sab achha hoga.