Has anyone else had a problem after a decapeptyl injection? I had my first one Tuesday 27th October (2nd day of my cycle) last week I had pain all week which is not different to normal. On Friday which was day 12 of my cycle i started another period. All weekend I have been bleeding really heavily with clots. I've hardly slept as I am in the bathroom every few minutes. I had to change pyjamas 3 times and also my sheets last night due to the amount of blood!