Think I have had a Misscarige with twins

Amber

I am 14 coming 15 and I have had sex about 4 weeks a go I lost a baby I think today when I had a wee it happened again and it was bigger I felt pane I ask my bfs mom and showed her and she said I was a Misscarige and showed her the pic from the other week to said the same thing I haven't stop bleeding since I'm scared and I feel that something is there still and I'm on the pill