I’m scared and I need advice

So I am 15 and I know I’m young but I had sex a few months back with a previous partner (I’d say 3-4 months ago?) I had a pregnancy scare but I then got my period, later down the line I have been getting slightly more discharge and have gotten back pain a few times, I am still getting my period though. It’s probably nothing but I’m stressing myself out as my parents are very strict and would kill me 😬😬😬