When did you take it?
How do you feel now?
I hope nothing comes of it. But babies are kept safe and secure in utereo in amniotic fluid. Protected from the world. The oregano oil mixture would have to cross the cervical opening and enter the uterus to actually get close to baby.
Take some vitamin C (500 - 1000mg) and your B vitamins including folic acid.
I'm not too sure what to say other than relax and perhaps contact a naturopathic physician.