Spotting During Early Pregnancy

Andria • 2 Miscarriages | 1 Ectopic | Laparoscopic Surgery - Fallopian Tubes Removed | Endometriosis Stage II | IVF Round 1 resulted in 5 Blastocysts | Mommy to a PRINCESS - Worth EVERY SHOT

I’m exactly 5 weeks today and I woke up this morning and noticed spotting! I’ve gone to the bathroom twice now and when I wipe there’s some light pink blood on the tissue. On the panty liner, I had some dark brown blood. I’m freaking out. We’ve been trying for three years and I’m finally pregnant. Please help... had this happened to anyone else?