Hey! Yes, it does vary a lot. If the conference is in April and the deadline for abstracts in already, then I'm guessing it's probably a pretty big conference, so I would probably expect to wait maybe a few months to hear back. I'm going to a massive conference in the US in November, and their deadline was about 6 or 7 months before the conference, and it took them a few months to get back to me, maybe about 3-4 months or so. If the conference is smaller then things tend to happen quicker in my experience. I'm presenting at a conference next month which is quite a small one. The deadline was only about a month ago and I found out after a few weeks that I had been accepted. So there is a range, but it sounds as though you may be waiting a couple of months or more! Good luck! KB