Can't get excited

I am currently 6 days late. The week before my cycle was supposed to start when I wiped there were either a light pink or brownish red color on the paper. Took a test (.99 Walmart brand) this morning and it was negative. My periods maybe a day to 2 off but not 6 and regular. Don't wanna tell my husband and get him excited as I was late by 20 days a couple of years ago and then AF finally popped her head up.

No I'm not stressed

Yes, I've been regular until now

Took 1 round of femara 2 mo ago but cycle still came on time

Been trying for 5 years