i have not been through the ivf and stuff but i was on clomid for 5 months to get this we one.
I know i had alot of cramping in the opening weeks so to speak alot turned out to be gas :P but i would say if you are conserned then ring doc especially if you start to bleed,i know it not a nice thought but that is when you do need to call a medical professional.
You will be fine hun lots of sticky dust