Just a bit confused...

Jenn

I have PCOS. Last period was in Dec, 17-19. My partner and I had MutiSes on Jan 1st. Spotted on the 19th. Haven’t got my period yet. I tested the 16th and today. Both negative. I left the test upside down as it was testing, didn’t read it had to be test side up. Could that cause a negative? Sorry, I’m new to all this.