¿El retraso en el período se debe a la píldora para detener el período y a las relaciones sexuales?

Prega news kit may not necessarily indicate pregnancy, it is always best to seek professional medical advice. If you are experiencing pain and are unsure about your pregnancy status, consult with a gynecologist

Noticing brown blood clots in your urine during pregnancy can be worrying. It might be a sign of a threatened miscarriage, which can cause bleeding and clots. It's good that the bleeding has stopped, but please stay alert and talk to your obstetrician to discuss your condition and get the right treatment. 

In this case you should go for second opinion of another experienced doctor. They can evaluate your case and then you can come to a conclusion.

I would recommend that pregnant women avoid taking whatever medicine without consulting her doctor at least in the fifth month of pregnancy. Before using any medication during pregnancy, it is advisable that one should make sure to consult a gynecologist

Yes, oral contraceptive pills can delay your periods. But it is advised to not use these pills to delay your periods for more  number of days. 

Most people­ worry when unprotected se­x happens. Your period starting lowers pre­gnancy chances this cycle. But sperm can live­ for days inside, so a small risk still exists. Take e­mergency contraception if conce­rned. Use condoms or birth control to preve­nt pregnancy.

It’s completely normal to feel anxious about this. When you don't get your period after having unprotected sex, it’s usually a cause for concern. Stress, hormonal imbalance, or pregnancy could be delaying it. Also, the fact that you took an emergency contraceptive might mess up your cycle. Just give it some time and you may see your menstrual flow soon. However, if there are other unusual symptoms or the delay persists consider taking a pregnancy test.