NORMAL OR NOT??

i delivered arnd 3 months ago and had my 1st menses last 22/04-05/05. it was quite long as there were quite a bloody show. and suddenly it came again last night, another bloody show, where i can see blood dripping like tap. however im not sure if its menstruation or not because i just ended mine like 19days ago?? isnt it too soon for the next menses cycle? anyone have similar experiences or anything? TIA