Is there still hope?!

I am 1 day late. I took a test this morning and it says negative. My boobs are sore but the soreness tolerable. ( lots of people I've talked to say it unbearable soreness) I've been cramping off and on for the past week as if I'm gonna start. I'm on clomid and since I've started it my cycles have been exactly 28 days, so this is a little different. Is there any hope I can still get a positive tomorrow maybe?