5 weeks 3 days

3 pregnancy, 1 live, 1 miscarriage and this one after 2 months of the misscarriage havent had an ultrasound yet and doctors are not sure if i am 5 weeks or more as i had a "period" on june 18 one day of spotting for a few hours then 3 days of bright red light bleeding and brownish discharge for 2 days which was a pretty weird period for me... did this ever happened to anyone?