Ovulating after the pill

Hi ladies!

I came off the pill before Christmas and had a withdrawal bleed, I was due on Friday but.. nothing!!! I’ve tested and just keep getting negatives! Which is fine but.. I’m really worried as to why my period hasn’t come.. I’m not so worried about falling pregnant as I know this can take time but so worried my periods won’t return 😭 I’ve goggled which is one of the worst things to do I know 🙈 hoping it’s nothing to worry about, just wanted advice.. if you’ve been on the pill when did you ovulate? Also how do I know if I have ovulated? Sorry I’m new to this game 🤣

Thanks in advance💗