Also, 5wks pregnant and popped out like 5 months. second pregnancy, normal?

Yes: It is very common to "show" much sooner with a second pregnancy. Often i will tell my patients that they will feel about two to three months further along the second time around. This is because the abdominal muscles have stretched already and stretch easier the next time. It is important however, that your dating is correct and that you have an ultrasound to make sure you don't have twins.

Multiple gestation?: It could be an early multiple gestation pregnancy. Once you progress to 10 weeks or more an ultrasound can be helpful to determine if the pregnancy is single or more.