The last period was August 29th, 2020, and September 25th, 2020. Tests…

The last period was August 29th, 2020, and September 25th, 2020. Tests showed two lines, and then menstruation didn't come (they always arrive on time). After five days, there were bloody discharge for five days. I had an ultrasound, everything is clean, I had a miscarriage at week 5 in April. I thought it would happen again, but the discharge was weak. Even during PMS, it was stronger than usual. Now, for a week, I feel nauseous and my breast hurts badly. I haven't bled since, three tests are positive again. Maybe this is a new pregnancy or maybe it's not the one that stopped? If