Hi Scooby,
I dont know much about ectopic pg but is there a high chance with IVF because you bypass the whole travelling down the tube thing. I see from the other threads that your HGC levels are rising nicely so try and hold out to the seven weeks. Easy for me to say one I am not up the duff ( god I think that saying is so funny) and I have never had an ectopic pg. Stay +ve we are all here for you.