We have been ttc for a year and no luck yet. we had no problems conceiving and delivering our first, who's now 2. my cycles are normal. what gives?

First things first: Your husband needs to see a urologist for eval and sperm count first. Then, other options can be explored.

Get evaluated: Top general reasons: 1) male infertility, tied with 2) female ovulatory dysfunction, followed by 3) tubal disease (female.) 'infertility' is defined by unprotected intercourse for one year. This is based on observing 85% of normal couples conceive in that time. This doesn't depend on 'active trying, ' just that a sexually active woman is at risk with her partner during that time.