My DS fed every 1-2 hours round the clock for his entire first 6 months, there was no respite ever...
Once he was six months I weaned him off the boob at night using a really gentle method from a book I can't find, sorry, but I'll look some more if you are interested. DS went in his own room at night, and I pro-actively woke him up an idiotic number of times per night to feed him. If DS woke up by himself, DH settled him to sleep, with the knowledge that there was no way that DS could possibly be hungry. Then I shortened one of the bf by 1-2 minutes per night until it was gone, and then shortened the next until it was gone, and so on. Worked for both my DC. It was really hard at first with all the proactive waking, but at least it was measurably better every single night, and I could count down to when I would have one less waking, and then two less, and so on. It wasn't fun for poor DH.
Friends of DH were in a similar situation and solved it in just a week by changing over the person who settled the child at night from the mum (=boobs) to the dad and going cold turkey on the night feeds (eek).
My fertility returned around 12 months with first DC, and around 14 months with the second (both ebf). Both times it happened when I was actively cutting down on the bfs before returning to work. I decided to bf my first as long as possible, my thinking at the time being that I would prefer to not cut down completely to try to conceive a baby which may never come. In the end I ended up accidentally tandem feeding once the second DC came along...