Anyone fell pregnant on the contraceptive injection?

This is a bit of a strange 1 but im on the injection and was in the bath the other day and some milk came out of my nipple!! i prob should add that i breast fed a my baby 4 months ago but would that have dried up by now?! also im no a VLCD so wouldnt think i have enough calories to produce milk that isnt needed...im very confused lol!? x

I havent known anyone personally to fall pregnant on it but wasnt there a big thing on the news a few weeks ago about people falling pregs on a certain one???
I was on it for 2 years and was miserable I was a size 10 when I had it fitted and withing 6 months had put on nearly 3 stone and was a 14! It made me feel exactly like I was pregnant, huge veiny boobs, weight gain, water retention, HORMONES!!! I had it taken out and started loosing weight straight away without dieting, so maybe thats why youre leaking as it gives you some preggy hormones?