Normal?

I was already late for my period by two days when i got my implant inserted, which my period tends not to come when it was supposed to. I’ve had my nexplanon for about four days now and I still haven’t bled at all. I know it can cause irregular bleeding and some women may not get it at all. My doctor said i probably would since I haven’t been on hormones in about a year but nothing, and all of my PMS symptoms stopped. Did anyone else go through this?