We’ve been trying for 4 months now and my period is extremely regular (like I know exactly what time of day it arrives) but now I’m 8 days late. I have like no CM, and have taken maybe 10 tests (1 First Response and like 9 Clinical Guard HCG tests) all with negative response and not even a faint line. I made an appointment with my gyno but her next availability is 4/19. Just looking for some input...