Negative blood tests and hpts, lots of symptoms

My last period was on December 14 and lasted 4 days. About 2 weeks ago after starting to feel nauseous I had very light intermittent pink/brown discharge that lasted max 3 days. Starting about 3 weeks ago I’ve been feeling super bloated, nauseous every once in a while, sometimes get sick. Been having lots of cravings and been eating a lot more. My breasts, specifically my nipples, have been very sore and it seems as though my breasts are filling my bra more. I also find that my Areolas are larger and have so many more bumps on them then they usually do. I have taken many hpt and have gone for a blood test but none of them were positive. I was talking with my mom and she told me with my older brother, it took her 2-3 months with multiple hpts and multiple blood tests to finally get a positive result. Does this possibly run in the family? I feel so much like I’m pregnant. Have had multiple close calls but never felt anything like this.