Thanks for your query.From your statement it looks like that you have unexplained infertility
. It seems that you have been taking medicines without getting investigated properly There is nothing like swelling of the uterus
that should be the cause of infertility.Please consult some Infertility Specialist who will carry out some blood test
to find out cause of infertility and treat you accordingly.Do not worry what you need is to have proper evaluation.