Even more confused

Yesterday I would of been 6 weeks pregnant. Started bleeding last Wednesday (5weeks). Resigned to the fact of another miscarriage (no.3 in 6 months).  Had left over pregnancy tests so I kept taking them every 2 days and they just kept getting darker despite continuing to bleed. Still have sore nipples and breast completely covered in deep blue lines. Have sore round ligament pain in legs and hips. And I feel like I am going to throw up all morning. Any suggestions of what it could be?