Is there a baby in me ??!

So I have been feeling really sick for a week now and I have been in a bad mood. I haven’t been wanting to workout really and I have been eating really in an off way. My period ended last Saturday like 10 days ago and I have had sex a few times, I think I had it on the day I ended. My breasts have also been extra tender lately. I am on the pill but why do I feel like I need to take a pregnancy test I am freaking out what the heck I can’t be pregnant it’s impossible is it?!?!