16 DPO & Negative test still?

Hi everybody! I just wanted some advice on a specific topic. So I am 3 days late (16 DPO).. me & my husband were active everyday on my ovulation week. I took a test yesterday and it was negative. But today, i just had a tad bit of brown discharge. Idk if I wait to test again in a few days and see if my hcg levels increase?

My symptoms have been nausea, tender breasts, food aversions, headaches and backaches. FYI, i only get nausea whenever I am pregnant.

Some History about me

• 2 Miscarriages: September 2022 & December 2022

• 1 Chemical pregnancy: July 2023