Preparing to do our first cycle of IVF next month after TTC for 18 months. No known fertility issues other than age (I am 40 and DH 47). Still feeling a bit ambivalent about doing IVF at all. Can anyone let me know what I should expect? Which part is the worst? How bad do the injections make you feel? Also, should we go into this cycle assuming it isn't going to work? Stats at our clinic for a live birth are 23% so guess it's more likely that it won't work than it will.