Did anyone not test positive until they were already 4+ weeks?

I’m currently on cycle day 29 and still getting negatives. The other times i have been pregnant I’ve gotten a positive as early as cycle day 23 or 24 or 3 weeks pregnant. So I’m wondering if im automatically out for this cycle or maybe it’s possible to not test positive until you’re over 4 weeks?? I have no idea when or if I ovulated.

I had some cramping the past few days which felt exactly like the cramps I have during pregnancy but the test was still negative.