Hello doctor , I want to ask a question, When I got pregnant before 2 years for the first time. I started bleeding after few weeks that n later on continued few months of pregnancy with progesterone injections. Later on things went favorable and now I m a mother of 2 year old girl. I want to know that why my pregnancy was so typical . why was there a need of progesterone injections to continue my pregnancy. why couldnt it happen naturally?.....