At the outset, let me tell you that spotting in early pregnancy
is a common symptom with many people, reasons being many. So, do not panic. I advice you to visit a gynaecologist, get a pregnancy test and a checkup done along with a sonogram. Your doctor gave you a progesterone
supplement that helps to sustain pregnancy, but additional care is needed as you have pain also. Avoid bearing excess weight, intercourse and take bed rest
. Wish you good health.