Spotting and 4 weeks 6 days pregnant?? HELP!!!!!

Hello. I'm 4 weeks 6 days pregnant and when I went to the bathroom 20 minutes ago when I wiped I saw some very very light pink discharge. I kind of rolled up the tissue and inserted a little bit in there and pulled it out and there is definitely really light pink blood coming out very small amount :( I am freaking out!!! Am I miscarrying??? I want this baby so bad. I'm already preparing for the worst :( I've been reading so many miscarriage stories on here. This is my first pregnancy :(