How can I get a baby boy my age is 30 year I have a abortion 5th month due to fetal morphology is abnormal?

Same way every time. Urban myth may have you believe you can pre-select your offspring but that is bogus.If you go the test tube baby route you might be able to pretest an embryo & have it implanted, but that is tedious & expensive.You get pregnant & get whatever the successful sperm has made.(the sperm determines the sex)you have the same chance for boy or girl any pregnancy.