Hello,
From the description, chances of pregnancy are less likely because in this case a mechanical barrier of cloth was present between the sperms and egg during intercourse. So pregnancy is not possible.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing