Hallow Dear, Let me inform you at the outset that withdrawal technique is one of the most unreliable method of birth control. Pre-ejaculation secretions are deposited in the vagina unknowingly, and they do contain sperms which are capable of fertilizing egg. Therefore, in future, please use reliable contraceptive methods like condom (male or female), intrauterine device or pills. From you history it seems that you have missed your period. Though the other symptoms are not specific of pregnancy, missed period is sufficiently strong evidence to suspect pregnancy. Pregnancy test on the urine is reliable if performed on the overnight first morning urine sample 8-10 days after missed period. Earlier, these tests may give false negative results. So you may repeat the test after one week to be sure about the results. You have another alternative. You can opt for Beta hCG test. This is very sensitive test and gives reliable results even few days before missing a period. So, you can get it done right a way. If you are not pregnant, you may take Tab. Deviry for 5 days after which you should get withdrawal bleeding within 4-7 days. If you are pregnant, and if it is unwanted pregnancy, you may terminate it by simple medicines. Meanwhile you may report to your physician for your diarrhoea problem. Please maintain your hydration with Electral like oral rehydration solution. Heart burn and fatigue may be related to diarrhoea and will be relieved once your diarrhoea is under control. Mood swings can be attributed to the stress of uncertainty of pregnancy diagnosis. Once the diagnosis is confirmed, mood swings also will settle down. Please, hence forward, adapt reliable contraceptive method. I hope this helps you. Dr. Nishikant Shrotri