<s>[INST] i had one ectopic pregnancy in september 2012 ,after that now i am taking treatment , i got hcg injection on 11th day and doctor has prescribed me prognova and duphaston tablets for 10 days.now i am having little back ache and pimples ,this is when normally before my periods...i dont knw whether i am pregnant or not. [/INST] Hi welcome to healthcaremagic.I have gone through your question.The complaint of pimples might be due to drugs you taken, or periods. Many women have complaint of pimples just above periods stars.Backache has no relations with any drugs you described. Its muscular pain. Take pain killer, maintaon good posture will help on backache.For diagnose pregnancy if you surpassed bleeding time then do pregnancy kit test.Hope i answered your question.Would be happy to help you further.Take care. </s>