I have questions, teach me!

So if I’m not mistaken, once you get your POS OVU test strip or PEAK test, that normally means your body will OVU, releasing an egg in 12-48 hours correct? Once the egg is matured & released, it ONLY lasts 24 hours, right? If I’m wrong correct me, or educate me on more if I’m still missing. I learn learning new things!! Only asking because I got my pos 08/22 around 7pm. SO & I BD around 11:45pm. He works at 430am til 7pm & I work 130-1130pm .. I’m going to BD when I get home from work, it’s a must, I just wanted to learn a little more. Thanks in advance ladies !