Shouldn’t I have started my period?

Mariah

Okay, so I got the Nexplanon implant removed a little less than a month ago. I was put on the pill and I am now on the last row of pills. I only have two left and I’m a little concerned as to why I haven’t started my period yet. I still get the ‘crazy’ feelings. I am experiencing those now, but I don’t know. I’m just concerned.