Sarah, ring the clinic and ask just for your own peace of mind, if nothing else.

I had spotting and outright bleeding at all the wrong times, though. And every time it happened, the clinic's answer is that it wouldn't effect things at all. I think the only time bleeding/spotting could be an issue is if you are at the puregon (or further on) stage of the cycle? Don't quote me on that, though!

BW