Could I get pregnant ?

I’m on depo and I had sex two days ago. It was protected and he pulled out too. I believe no sperm have been in contact with my vagina but I can’t help but obsess about it. I’m supposed to get my period today but my period never come on the date predicted it always a day or so late Plus I’ve heard depo can make your periods irregular. I don’t know if I being paranoid but I just can’t stop thinking about it that I couldn’t even sleep in peace.

If you would share what you think that would be real helpful. Thanks:)

And umm it’s like my 10th day since I started depo.