Unfortunately APS isn't something that you actually "feel" or can "see". We present with different problems, and then they are taken as a whole. For instance miscarrying our babies regularly can be regarded as one. Obviously there are lots of other reasons why miscarriages can occur, so the history of everything is taken by the doctors.
If your doctor has ordered in depth testing for lupus, then their asking you questions about various things will lead to further testing to be done if you do present with the symptons for APS. If you are lucky and don't have the symptoms and so on normally associated with sticky blood, then this is usually enough for the doctor to be satisfied you are not at risk at the time.
Please remember too that people who do not have lupus can also have APS. If you do have lupus and APS, then it is classed as secondary. If you don't have lupus, then the APS is primary.
All very complicated, but essential for your getting to grips with whatever the testing comes up with.