Waiting for AF

So my period is now 7 days late and I’m freaking out...I’ve been experiencing all my usual pms symptoms but no period, no spotting just discharge. I have taken a total of maybe 5 Plan B’s in 2019 (which is horrible, I’m never doing it again) and I ended up missing 2 periods (38 days late) from one I took in October and then I took one in January of 2020. My period in March was late but only 1-2 days late. I’ve had 3 cups of parsley tea today bc I heard it helps, (I used parsley flakes) but so far nothing just more on and off twinges/cramps. I’m very scared and worried...I’ve cried and my anxiety is through the roof. I’m only 19 and I am sexually active but we have been using condoms consistently and the condoms are good. What could be the issue??