Late period - pregnancy - plan b - oh my!

Ta

Okay I’ve had a fairly regular period up until recently. Last one was October 31st-November 3rd. Sex on November 4th and condom broke so I ended up taking plan b on November 5th. Ended up having dark spotting (wasn’t like normal flow) November 16th-19th. (Don’t know whether or not to count that as an actual period)

If The second bleeding was my period then I’m late by 2 days. If it wasn’t, I’m late by 2 weeks. 😶😶

I have taken 4 urine tests (most recent this past Saturday) and one blood test (December 7th). All have been negative.

Last time I had sex was December 3rd. So while I’m doubtful that I am pregnant, if my body still continues to delay - how many weeks out should I finally accept that I’m not pregnant? Like my fear is that all of a sudden my hormones make it where I don’t have a period for over a month. How long should I keep taking tests for? Every week until it finally shows up? Accept I’m not pregnant, if it’s still negative this weekend? Accept I’m not pregnant now?

(I’m cutting myself off from sex for a hot minute til I get this whole debacle sorted out)

Sorry if this doesn’t make any sense!