Could I be pregnant? Maybe tmi

Personally I don't think I can be and maybe I'm just overly worrying

I was dating this guy, I met him in September, we got a bit drunk and ended up having unprotected sex. I got the morning after pill the next afternoon. My period for October was 2 days late but, I was really stressed out as he had been ignoring me. It was a proper heavy period.

Anyway, i didnt see him for 2 weeks, then we met up again on a night out, the last time we had sex we used a condom.

The same morning after we had sex, I had the implant fitted.

So now as of weds, He has started ignoring me again and in my eyes we've basically split up for good, coz I don't need that crap from a guy, but now my period is late again.

I don't think I'm pregnant and I have no symptoms and the implant stopped my periods last time.

What do you lot think?