I’ve just come of the implant in September and had my period straight away, ever since I’ve had my period on time every month using this app but this month ive not had my period

In October I had my period 18th till the 22nd had sex on the 26th then was ovulating 27th till the 31st I was due on yesterday (always start my period in mornings) but I’ve not had anything not even started today I’ve took a clear blue digital test and says not pregnant took a clear blue test normal one was negative took a test last night and it had a faint faint pink line im so confused to wether I am pregnant or not

Is it because I would be too early

really need advice im going out of my mine thank you