Periods can sometimes be late due to stress, changes in life, or even illness. Since you used protection, the chances of you becoming pregnant are lower. In case, the delay continues you can do a home pregnancy test for reassurance. Tracking your period is always a good idea. 

It is not recommended that you delay your periods as it can be harmful to your health. Attempts to control your menstrual cycle can result in hormonal disbalance and hence irregular periods. Talk to your gynecologist

You should be okay if your te­tanus shot was recent. The te­tanus bacteria enters through cuts like­ shaving nicks. Be alert for muscle stiffne­ss or trouble swallowing. Those could signal tetanus, so se­e a doctor immediately. But if you don't have­ issues, keep the­ wound clean and watch for infection signs. There­'s no need to panic with a current te­tanus vaccination.

It is not likely that you're pregnant.... Incomplete penetration doesn't cause pregnancy.. Feeling weak and tired may be due to other factors.... Monitor your symptoms, rest well, and eat healthily.. If symptoms persist, seek medical attention.... 

It's normal to feel worried about this, but let's break it down. Missing a period after taking emergency contraception like Norix is common. It can mess with your cycle. Stress and hormonal changes can also delay periods. Symptoms may include bloating, breast tenderness, and mood swings. If you're concerned, try a home pregnancy test. Take a deep breath and give your body some time to regulate itself.

Sometime­s, an overgrowth of yeast occurs within the vagina. It cause­s itching, burning during urination, and unusual discharge. Avoid tight clothing and promptly change out of damp swimwear. Ove­r-the-counter creams or table­ts can help eliminate the­ excess yeast. Be­ sure to follow all usage instructions meticulously.