Hay anak, that spotting pattern sounds concerning and honestly I'd really push to get that ultrasound done na, lalo na if you had three straight months of bleeding after giving birth, that's not normal and the doctor was right to be worried. I know it's hard to get appointments and all, pero better to check now and have peace of mind, kasi kahit light ang bleeding, there could be something sa uterus na kailangan i-monitor, especially since you have a history na. A few of us moms nag-experience din ng post-partum bleeding issues and most of the time it's nothing serious pero kailangan talaga makita ng ultrasound para sure, so please don't delay the TVS appointment na yan ha?