First cycles off birth control

So I just got off my bc. I’ve had two natural cycles so far. The first was relatively normal, this second one was much shorter, only two weeks. Is this normal? I don’t have an obgyn I like rn and would rather get other people’s experiences. We of course are hoping to get pregnant as soon as possible, and thought we had the opportunity this cycle. I thought I’d be ovulating today or very soon, and instead got my period. I am, understandably, disappointed. How do I figure out ovulation? Will I have to wait many months? Should I test ever single day? How expensive does that get? Thanks!