Did any of you have this and end up being pregnant?

You might be pregnant, or you could just be having a really long cycle. Only a test will be able to tell you if you're pregnant. Since you seem to know about CM and OPKs I suggest you check out fertiltyfriend.com, take their tutorials and start charting your cycles. It will help you gain an understanding of when and if you are ovulating as well as when to expect your period so you will know for sure if you are late or just stuck in a long cycle. Best of luck! Hopefully you are pregnant and won't even need this advice!