Will Missing Contraceptive Dosage Increase The Likelihood Of Becoming Pregnant?

I m 18, I ve been taking birth control for months sometimes I forget I ll admit but the day I had sex I made sure to take it, but we used the pull out method. Anyways, I ve been so paranoid since I had sex around 5 days ago, I m not feeling really anything besides bloating but my period is suppose to start in a couple days but it s weird cause when I started chatting with another person my body stopped feeling weird. But I ve been taking ground cinnamon and pineapple since I ve been paranoid so my period might have came early I was bleeding ( string like blood clots and before it started I had a thick brown discharge then everything seemed find it was bleeding again and sometimes was brown but periods are usually irregular but they start sometime in the beginning of each month ) for two days but it just stopped now but a little cramp from time to time and my back aches a bit sometimes but my back has always ached. I m afraid that I m pregnant but my mom says I m probably not but I ve been freaking or so much everytime I read everything leads up to implantation bleeding and ovulating and I m just not ready to be pregnant the worst part was that the time I had sex that time, I lost my virginty and I can t stop being paranoid and I ve been stressing out so much. I just want your opinion is take a pregnancy test but k can t right now but I need an opinion to help ease my mind or let me know the truth.