Confused...please help!

[Ramla0]

Hi all, I had a regularly period on 20/04/2016,which lasted a little longer than usual (9days on and off), few days later I had implantation cramps (pulling sensation in uterus and spotting)and that happened for about 5days, I also had other symptoms of early pergnancy. One the second week, the light brown spotting had turn to little bleeding. I made an appointment with the doctor and was told not to worry or stress just take it easy as it was too early to determined if I was pregnant or not, over the next few days the little bleeding got worse, I had clots, really bad back and lower abdomen pain, and that later 5days(bleeding starter 10 May). I today I have what feels like period cramping. Please help.