My husband and I have been try, and I have just finished my second round of Clomid after my dr had increased the dose. I am on day 50 of my cycle and No period?! Slight pink when I wipe(but only sometimes), could that be implantation bleeding? My cycle has been rock solid 28 days for years, with nothing like a light period. I have taken numerous pregnancy tests but they have been all negative so far. What is going on with my body?