Pregnant ???

The last time I sex was before birth control we used a condom and he pulled out . I didn’t need to go to the doctors for it because I had it prescribed beforehand .

I’ve been feel really tired on and off nauseous and recently I got a headache . I’ve just been feeling in general unwell . It could be from the pill but I’m freaking myself out .

My period isn’t until 9 days but that will change due to the pill I’m assuming . And I can’t ovulate I think so idk what’s happening