Hello. I had undergone ectopic pregnancy surgery in the month of march last year. Then again missed miscarriage in the month of october. Recently chemical pregnancy in the month of march this year. On boh test it's apla positive. I was suggested rubella vaccine which I have taken recently on 19th may. When can I try to conceive again? And with apla positive will I be able to conceive successfully? I'm also suffering from an auto immune disease ankylosing spondylitis.