Abortion kit used a kare. Or not!

I Am unmarried but I have a boyfriend. I am pregnant now and my last periods start 27 may 2019. And I missed my June periods ,then I think my periods may be late but I wait 18 days more but periods not comes. Then 18 July 2019 I have check pregnancy check and Result is positive. Then I have used abortion kit. 19 july 2019 night 10 am 1st pill taken and then after 24 hours I used next 2 pills 20 July 2019 and within 1hours bleeding start and 3 large clots out and painfull and bleeding is normal and back pain, stomachache is too much, vomiting and gas in stomach . I am not used rest pills but 21 june next day 1.00pm bleeding is slow then I used rest pills and bleeding is again start after 2 hours.  back pain is very huge. I ask questions abortion is successful or not. And I need altrasound or not