Missed period

Suzette
So I was supposed to get my period Wednesday. I waited till Friday. I took a test and it was negative. Could it still be too early? I've had egg white discharge since Wednesday. I have had horrible mood swings for a week along with insomnia. I don't know what to think or do. We've been trying for 7 months now. I'm so scared. I've had 3 miscarriages one as recent as 2 years ago.