Mama, brownish spotting in early pregnancy is actually pretty common at 7 weeks, a lot of us here had it and everything turned out okay, pero I totally understand your anxiety after what happened last year. The fact na walang pain or cramps is a good sign, at brown discharge is usually older blood which is less worrying than bright red, but honestly given your history and how you're feeling, it's best to message your OB now rather than wait until next week para sa peace of mind mo, hindi ka magsisisi, at they can do an ultrasound to check baby right away. Keep observing with your pantyliner like you're doing, take it easy on bed rest, at let me know how it goes mama, rooting for you and baby!