The risk of pregnancy is generally low. However, variations in cycles, stress, and other factors can cause period delays. Consider emergency contraception if needed, and if your period is significantly late, take a pregnancy test.

The likelihood of pregnancy from precum alone is generally considered low. If you're concerned about the possibility of pregnancy, you may want to consider taking contraceptives.These pills are most effective when taken as soon as possible after unprotected intercourse, preferably within the first 24-72 hours

PMS is the short form for premenstrual syndrome which occurs before periods begin. A pregnancy test can be taken to confirm if it’s PMS or not. Whether these are signs of something else like stress or illness is also something to think about. Anyone who suspects that they might be carrying should seek medical attention immediately so as to get proper care and guidance.

The problem of cervical cancer is caused when the cells in the cervix get as a matter of fact, out of hand. The primary connection is through the HPV virus, which is transmitted during sexual activities. Some non-specific symptoms may also be there including the following: bleeding from the unusual site the woman has never experienced before, pain during sex, and pelvic pain. The use of Pap smears and HPV vaccines is one of the ways to minimize the risk of cervical cancer. This may happen to the p. by surgery, radiation, or chemotherapy. 

You may have implantation ble­eding. This light spotting occurs when a fertilize­d egg attaches itself to the­ uterus lining. Mild cramps can accompany it too. However, it might be­ your period starting as well. Pay close atte­ntion to the flow and intensity. If blee­ding becomes heavie­r like a normal period, then it probably isn't implantation. Eve­ry person's cycle is unique though. 

There could be a delay in menstrual cycle because of many reasons like stress, hormonal problems and some medical conditions. Nevertheless, you had no protection thus pregnancy is always a possibility for you. A pregnancy test and a visit to the gynecologist will be necessary for proper evaluation. They help you in knowing what to do and also give medical advice.