Then I'd seriously be doubting that it's the husband's kid.
Abortion
Yes; in fact it's fairly likely, since 1-2 weeks before menstruation is when ovulation occurs.
No it does not.
it is called an ectopic pregnancy.
Hair loss due to pregnancy usually occurs after delivery and is called Telogen effluvium and occurs in 40-50% of women.
Cramping generally occurs throughout pregnancy, as the uterus grows and stretches.
An ectopic pregnancy is a uncommon pregnancy in which the pregnancy occurs outside of the womb. Most of the time the fetus (newborn) will not be able to develop and survive.
IUP stands for Intrauterine Pregnancy, which refers to a pregnancy that occurs inside the uterus. It is the most common location for a pregnancy to develop.
I am not sure what you mean by cancel out a pregnancy. The only way to stop a pregnancy once it occurs is abortion. Sometimes you can induce a period before pregnancy occurs to prevent it. The pills have instructions that say exactly how many you can miss.
..for me... i think that impossible...
yes, but usually this occurs further in your pregnancy, because the baby is pressing on nerves.
a post-zygotic barrier