My dear young friend, Let me assure you that your worry is unnecessary. Please try to understand the method of conception. Woman s eggs are produced in the ovaries and are released, usually one per cycle, near the tubes which are picked up by the tubes. This usually happens 14 days prior to next menses. During sexual intercourse the sperms are deposited in the uterus and the vagina. From there they swim and meet the egg somewhere in the tubes. The fertilization takes place mostly in the tubes and the fertilized ovum is propelled by the tubal movements in to the uterus where its implantation takes place and it starts growing as embryo. The only access to the tubes for the sperms is through vagina and the uterus. There is no connection between the tubes (or reproductory organs)and the intestinal tract. Whatever is ingested through the mouth goes in to the gastro-intestinal tract. The only outlet for it is through the rectum and anus. Therefore sperms ingested through mouth cannot get any access to the woman s eggs which are entirely in different body system having no physical communication with the gastro-intestinal tract. Hence, I mentioned that your worry is unnecessary. However, please keep in mind that if at all you happen to have sexual intercourse inside her vagina - even at the vaginal outlet, there is always a possibility of pregnancy. Before sperm ejaculation, there is always a pre-ejaculation secretion which also contains some quantity of sperms which can cause pregnancy. This pre-ejaculation secretions are released unknowingly. So you cannot be complacent with the idea that you have withdrawn before ejaculation. I feel I have made the issues sufficiently clear to you; even provided quite an important information every couple should know before they engage in any physical love making activities. If you are happy with the information, you may give me good review and rate me with 5 starts.