2015 jan I got married. Last month we started trying for baby. In may 2016 I had laparoscopic for appendix and perforated ulcer. My normal period cycle is 28-30. Last period I got on aug 17 2016. This time I missed my period.In HPT faint positive line has come but next day I started bleeding with cramping and severe lower back pain. I met doctor she took urine test it was negative. But blood test is positive. Doctor gave HCG infection folic acid and progesterone tablets. My hcg was 36.8. Doctor told it should be doubled. My doubt is will that injection cause any side effects? Igot bleeding with cramp Will my baby be healthy if hcg is doubled? Is it an implantation bleeding? Why did I get my period? But still HPT shows positive pregnancy.