5 weeks and spotting

This is my second pregnancy. I'm 30 and my son is 10. I didn't spot at all during my first pregnancy, but now I've been lighty spotting for 2 days, light brown. Today is day 3 and is a bit brighter. No blood clots and no painful cramps, just light discomfort. But I can't help but worry a bit because this is different for me this time around. Any feedback would be greatly appreciated