Lolly : Crinone gel is another form of progesterone. It is an alternative to Pesseries but not as strong as the Gestone injections.
Clexane - if you are just doing the 1 injection before the flight , you have been prescribed it to avoid deep vein thrombosis associated with air travel. Those that do weeks/ months if Clexane are doing it as part of an immune protocol - so same drug but 2 different purposes.
RE Embryoscope - basically it is as Lolly said above. The benefit is that instead of the embryologist taking the Petrie dishes out each day to look At growth, they never leave the incubator and are filmed 24/7. The embryologist can then review the footage for overall growth plus the way the embryos grow ie choose the one/s that are consistent etc rather than just fastest ( or whatever they are looking for). Also less handling should mean more blasts. I used it and ended up with 7blasts out of 9 collected eggs - I am a convert.