, Ruby is the same age as my DS he was born on the 3/4 I have no answers for you we were lucky in the fact that we started using Tizzie Halls save our sleep routines when Nath was 8 weeks since then he has been sleeping through the night from 7pm - 7am. I know it has been very much debated here lots of people hate this particular book but it worked wonders for us.
you can find something that works for you soon