Tests getting lighter

Kayla • Wife & mama raising two babes with my angel baby Ada in heaven. ✨ 10/3/2020 Rest In Peace my beautiful baby girl. 💖

Lmp was Jan 12-14 with spotting the 15th. I had on and off blood in my cm the following week. Tested positive on the 26th and my tests aren’t getting darker. I used a different brand for hpt and it’s a vvvfl. Has anyone had this happen to them and have a healthy baby? I am worrying myself sick. I can’t lose this baby 😓 no other symptoms. Occasionally slight cramping but it goes away.