Could I Be Pregnant ?! PLEASE give your feedback 😣

My Last menstrual period was Aug. 26. I had sex on Sept 14th . He did nut in me. I haven’t really been paying attention to my body due to the fact that I’ve had a lot going on (I usually do though), I’ve been moving and work etc. my period trackers say I was suppose to have my period on the 23rd or 24th. I’ve had weird feeling abdominal pain , my nipples are a tad bit sore but that’s really it. Could I be pregnant?