Pregnancy spotting/when to worry

Hey guys. Just curious on how much spotting is normal vs what is enough to go to the ER.

I am 7+3, set for my first ultrasound on the 15th of May. I went and had bloodwork done today, and all in all had no issues today. I got home and went to the bathroom to pee, and when I wiped, there was some orange red spotting. It tapered off after the first wipe, no cramping or clots. I put on a pad and waited. I just woke up a bit ago from a nap and there is some brown spotting in the pad(not much) and some when I wipe. Still no cramping. I assume this is normal so I dont want to run to the ER unless I absolutely have to.

Generally speaking, is it true I should only go if I start bleeding more and cramping a lot? This is a photo of the brown spotting I just had.

Should also note I havent had anything done or done anything to irritate my cervix, so that isnt an issue.