L.C.
I was never on clomid, but 1 time 2 years ago I skipped a month.....had all those simptoms you are having, .....went to the doc, everything was normal, just no period. The doc said those things happen sometimes for no reason. However I also had couple of friends who did not know they were preg till they were 4-5 months along since blood test kept coming back negative Docs said those things happen too, will just have to wait and see.
I hope you'll get the positive:)