Yes. It is possible for a girl to get pregnant even when the boy withdraws his penis before ejaculation. The “pre-come” (the lubricating fluid that leaks out of a boy’s penis before and during sex) contains sperm. If this fluid gets in or around a girl’s vagina, it can find its way inside and she can become pregnant. Girls should never be fooled that withdraw during unprotected sex is a protection against unwanted pregnancy or STIs.

YES , a girl can get pregnant whether it is first, second or a hundredth time to have sex. As long as this sex is unprotected or wrongfully protected [where a condom has been used the wrong way] and this same girl is not using any other control measures like pills, she may get pregnant. The probability is highest around the time of ovulation (when the egg is released).
Should the man place his penis in the vagina and he ejaculates sperms in the woman after she has ovulated or when about to ovulate, even if it is first time to have sex, she can get pregnant

Pregnancy can’t be prevented by a girl urinating after having unprotected sex. Urine exits the bladder through the urethra, which lies above the vaginal opening. This means that any sperm in the vagina won’t even get wet when a girl urinates. Unwanted pregnancy can be prevented by having protected sex. The best way to prevent unwanted pregnancy is to abstain until the right time.

The onset and degree of pregnancy symptoms vary within women. Some women experience them within days of conception others take much longer. Some of the pregnancy symptoms include:
(i)  Nausea and vomiting: Many women experience illness in the morning (morning sickness) and others feel nausea throughout the day.
(ii)   Breast tenderness:  Due to the increasing amount of HCG hormone that begins at implantation, the breasts may become very tender and may start to enlarge. The veins in the breasts may become more visible. The nipples may start to darken in colour, become more erect and extremely sensitive.
(iii)  Feeling tired/Sluggish uring pregnancy, the body goes through major hormonal changes. The temperature becomes higher due to the amount of progesterone circulating through the body making the pregnant woman feel sluggish.
(iv)  Frequent urination: Pregnancy causes the uterus to swell and to start enlarging for the growing fetus. The uterus puts pressure on the bladder causing the feel for the need for more frequent urination.
(v)  Missed periods: There is no ovulation during pregnancy therefore a pregnant woman misses her menstrual periods.
(vi) Irritability: Many pregnant women as easily irritated as a result of the hormonal changes and the need to put up with all the pregnancy symptoms.
(vii) Heartburn: Pregnancy hormones will slow down bowel functions to give maximum absorption time of vitamins and nutrients. The stomach may not empty as fast which increases the stomach acid.

Just missing your period for 2 month does not necessarily mean you are pregnant.  It is normal for young   girls not to menstruate regularly as their bodies are still growing. Menstruation is affected by so many factors like stress, emotional ups and downs, sickness, nutrition, fear, anxiety to mention but a few.
However, if you have a number of the above symptoms, you need to go to a health centre for a pregnancy test.

Yes, it is possible for a girl to get pregnant if she has unprotected sexual intercourse during per period (i.e. when she is still breeding). It depends on the length of her cycle, how many days her period lasts and when she has sexual intercourse because the sperm can survive up to 3-4 days in a woman’s body.

For a girl with a short menstrual cycle like that of 21 days, ovulation (release of the egg) may occur when she is still in her period especially if she stays long like 7 days in her periods. Therefore it is possible for the girl to get pregnant so long as there are sperm when ovulation occurs even if she is still in her periods.

Your friend my dear is very normal. But her practice is not a normal one at this moment in time, where sexual intercourse could lead to many more challenges besides pregnancy, like Sexually Transmitted Infections (STIs)  including HIV/AIDS.

Still though, having sex every day, many times does not guarantee a pregnancy. For a pregnancy to occur many factors come in play. For example she could be using a condom or other forms of contraception like pills before she has sex.

Secondly in young people, it is a common practice to portray themselvies as if they are very sexually active yet in actual sense they are not.  She could be  telling a lie to you so as to prove something.

Thirdly it could be chance that every time she has sexual intercourse it is not the time for fertilization to take place.
You need to know however that unprotected sex could lead to pregnancy among girls  with functioning reproductive organs including you  and your friend.