Compared to when. One is more fertile after having an iud removed compared to previously when on the iud. If comparing to prior to having iud placed, then age may affect one's chance of conceiving. As one gets older, fertility generally decreases.
Most likely. If you have had your iud removed and what appears to have been a normal period, you are back in business! Unprotected intercourse shold now be pulling the one armed bandit, rolling the roulette wheel of fortune and perhaps winning with bingo!