19 DPO and BFN. Could I still be pregnant?

[Rosie0812]

Hi, I’m in my early 20s and my usual period cycle is 45 days. I have very irregular periods sometimes earlier then that sometimes later so it’s hard to tell when I should test?
I had sex 19 days ago and my period is due in 5 days.
I am just unsure if it’s even worth waiting to see if I’m pregnant as it’s been way over 2 weeks and that’s when my hormones should be detected in my urine.
I’ve taken a dozen tests and all negative, I’m losing hope because I would love to be a mummy one day and it’s making me really excited that it could be now.
My symptoms are;
I got light bleeding when I wiped an orangey pinky colour and then a dark brown near the end of the 4 days. (That’s never happened to me before I’ve never spotted once in my life and it’s a bit of a coincidence for it to be something else just a week after I have unprotected sex)
Headaches
Sensitive to smell
Feeling sick but not actually being sick
Fatigue very very tired
Achey especially my back and legs
Mild cramps
My boobs look and feel slightly bigger but they’re not sore, not more then usual anyway.
My question is, do you think I still have a chance to get a BFP even though it’s been 19DPO and my period is due 17th March (5days) and that all the tests are negative. The tests say to wait 14 days and it’s been way over that.
Helpppp xx

if you have enough symptoms to feel, which come from hcg, then you'd have enough hcg coursing around to be picked up on a test. I'd say unlikely, maybe still technically possible but unlikely

Hello, just looking for someone who has had a similar experience, I have pco not pcos , regular periods, 31 days, I am 17 dpo, negative pregnancy tests, ttc, weird blue veins on breast slight heightened sense of smell but I feel like I usually can smell bad thingsno other pregnancy symptoms, constant fluttering in uterus like at is coming but still nothing for 7 days of feeling like this.. Has anyone else got a bfp after bfn after 17dpo.