Am I being paranoid or should I be worried?🤔🤔

I’ve been doing all this searching and what not because I got my depo shot November 28th my period was suppose to come on the 12th but it still hasn’t in between the time I’ve had sex but my boyfriend has never finished in me.

I read that and now I’m all paranoid We had sex two days before the seven day period was over 😑😑 but I don’t think I’m

Pregnant it’s one of those things you just know. But then again my family is like a walking fertility bank which is why I got on bc a month after first having sex. I feel like I should take a test (which I’m going to do tomorrow) buuuutt idk I feel like I’m being paranoid because now that I’ve moved out of my mom’s house everybody up under the sun has been saying I’m going to get pregnant like my sister who I currently live with because she got pregnant around my age (17) and now has 3 kids and she’s 24 It’s not like she doesn’t have her life together but that’s not the point am I just being paranoid or should I be worried??