5 weeks, faint lines and spotting

Help! Today is march 22nd (wednesday) and i think i am 5 weeks 2 or 3 days roughly. I found out on thursday i was pregnant but have taken 2 more tests (although different brand) on Saturday and Monday and it doesnt seem the positive line is getting any darker :( i wasnt really too concerned about this as i know its early but today i woke up and when i wiped there was some pinkish blood. Im worried all of this is not a good sign. Any advice? Photo below 🌈😔