You're not pregnant. There are dozens of reasons beyond pregnancy to cause a late/skipped cycle, and age is a big one. Your body is still working to regulate your cycle, and this can extend up into your young adult years.
Oh thank you! It's been 4 days and still no period...
I thought my period has been regular for a couple of months, is it possible to just be irregular again?
Very possible. Or you could just skip a month. There are so many reasons, and at the same time you don't even need a reason to skip one or be late. Just not ovulating one month will cause no period, as ovulating is what triggers a cycle.
Thank you!:)
Although Im still worried, I feel a lot better:)