what ever micro abortion crap the injection is not abortion but contriceptive- cant spell
n e how
to answer your question, yes
my first injection i bleed for about 6mths -not so normal
a year or two later i tried injection again and have had a regular bleed every three months bleeding or spotting when injection was dueish
didnt want to stay on it for more than two years at a time so i got off it and now im pregnant 6mths after my last jab
i thought it may have had a bit more of a lasting effect concidering the length i was on it -we are happy all the same number 4 on its way