8 weeks pregnant

Hi, last Thursday night nag ka blood stain sa panty liner ko. That night mismo we went to the midwife's clinic, she then referred me to the OB near our place. Friday afternoon, I had my Transvaginal (TVS) ultrasound to see the baby's heart beat as per OB baby is normal. Today, Saturday 3:30 AM I got blood stain nanaman. And today, evening of Saturday, after half bath, may dugo nanaman. Why is it like this? I am 96kg in weight and I know it is hard kapag ganito ang weight. Please help me to ease the way I overthink things ? Bakit dinusugo pa rin ako...