Ay mama, I feel you, na-stress ka na lang ng todo-todo kaya paano pa if may spotting pa! Good news: may kaibigan ko rin na nag-spotting around 5 weeks after taking herbal stuff, and the spotting stopped after a few days of rest. Since ultrasound mo na normal and cervix okay na, most likely yan lang from the irritation or pagod mo talaga (sobrang relatable, hirap mag-rest pag anxious haha). Marami ring nag-share na spotting at 5 weeks is pretty common, from implantation or just cervix being sensitive, pero since ang spotting mo umuulit pag napapagod ka, rest talaga ang best bet for now, and avoid heavy lifting or strenuous stuff muna for the next week or two. Watch lang na kung parang nagiging heavier siya or may severe cramping, head straight to your OB kasi that's when you need to get checked right away. Pero honestly, check with your doctor din kung tuluy-tuloy pa rin after 7 days, she'll know your full history and can give you peace of mind!