Hi! I was on clomid for 5 cycles, for the very first cycle I got a bt at day 21 to confirm that I had O'ed, my gyno was happy with that and left me on my own. I fell pg on the 2nd cycle, but sadly m/ced but am now pg from cycle #5! Once ur on clomid try opks because ur hormones shld be stronger and hopefully they work so u can determine O time! I also found i got very tender right across my lower tummy for a couple days when i was about to O.
I honestly dont think its necessary for u to part with all that money.. if ur not pg after a couple cycles maybe consider it then??
Good luck!!