i am 18 yrs old and in april of 06 i had an abortin less than a week later my doctor put me on the shot for 3-4 months i didnt get my shot i thought it was cool but i felt like c**p though even though i wasnt bleeding by sept my period came back and it comes 3 times a month and last for about a week then it would stop for a week and come back again if it stops it comes right back after i have sex what is wrong with me ? when can i start havin g kids and a reg period ? i need some answers