Needing some guidance

Michel • Married 4-25-14, son arrived 7/6/15, daughter arrived 3/15/18!
I'm feeling a little down in the dumps today. I'm 4 days late, many symptoms, took a HPT this afternoon and it was negative. I know that it could just be that I need to use FMU and that I'm not out of the running until AF shows, but still. I just found out after taking the test that ANOTHER person I know is pregnant and due in August--which makes ten people. I just want to cry. If anyone has any advice they can give or a pick-me-up, that would be great.