I’m new to this app so please delete if not allowed.

I’m wondering what you ladies know about low HCG levels? My husband and I have been trying for about a year now, my periods have been pretty regular and I’m about 3 weeks late. I have take 3 pregnancy tests all negative but still no period. I haven’t had a ton of other signs other then sore breasts, and super fatigued. I’ve talked to a few Friends and they suggested maybe my levels are low so a home test won’t show it? Is this even a thing? Is this conman? Am I jumping the gun if i go to the doctors this soon? Should i just wait and see? Please help!😅