Am I just paranoid??

Lizzie

So I’m late on my period by a bit. I last had sex no condom February like 3rd and then got my period the 7th. It ended the 12th so normal period. I am no longer taking my inactive pills because I’m switch BC and my OBGYN told me not to and to stop taking all my BC on March 22nd so that I can get my period for my appointment March 28th to get my IUD. I’ve had some crapping and mood swings but that’s about it. I’m worried that MAYYYBBEEE I’m pregnant but could it just be my pills? Anytime anything goes wrong with my period I always assume pregnant. Help please?