Try to relax a bit. I had LOTS of prelabour for 3 of my births and the worst thing you can do (for your mental sanity) is get worried and try to bring it on faster.

Unless your water breaks (or you have to poo a lot from the pressure!) try to rest and go about your stuff and it will happen in good time. You still might have a few more weeks of it seeing as you're 2 weeks before your EDD. Also 45sec contractions aren't really business ones either, even though they are 3 - 5mins apart. You want good 60 - 90sec ones. They really are different once you are in proper labour.

I know it's hard when you're going through it I cried one night after it died down because I had my MIL staying here after doing the drive over the night before cos we thought it was time. We'd rung the hospital and everything