So I got my IUD (skyla) placed in September, and I've had somewhat irregular periods since then but I've always gotten one every month, but now I'm around a week and a half late (according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>). I've been having sex with my boyfriend almost as long as I've had the IUD and we always wear condoms but I'm still starting to getting worried. I've read that stress could be a reason your period is late, and my dad just passed from cancer a month ago, do you guys think it could be that? Or should I be worried?

I also have a regular check up with my doctor next Friday, should I just wait till then and try to stay calm?