I Just Finished My 5th Round Of Clomid And Im

I just finished my 5th round of clomid and im on my 2 round of menopur injections. About a week ago I had spotting for 2/3 days then nothing started clomid on sat 3 times a day for five days and today will be 3rd day for injectables and I am spotting again. I am wonder is it normal to have spotting while on this or can it be implantation. Thank you