I noticed fertile cervical mucus today, does that mean I'm ovulating.

For about 5 cycles I was checking for mucus, but had none ,or very little.

Because I saw some today, does that mean I will ovulate today, tomorrow or how many days are open for ovulation once you spot the egg white mucus?

Thanks

It's a sign that your body is preparing to ovulate, not that it actually is... (although generally it is assumed you would be ovulating if you have regular cycles and no known fertility issues.)

Once you notice a change, good idea to start having frequent sex over the next several days. Some women may ovulate soon after they notice a difference, some may ovulate several days later. Good luck!