can I concieve?

This is my first post here so here goes.

I had my very last depo shot in january 2017. My periods have just started regulating over the last 5 months or so. my cycle normally runs about 34 days at the moment. i have been taking prenatals for 3 months now. Over the last two months I have had CM that leads me to think my body is actually ovulating. I am supposed to ovulate this sunday the 28th.

My first question is how can i be sure im actually ovulating? second question is, does anyone have any advice for me while TTC?