i had sex on the 22nd of jan and i pretty sure i was suppose to get my period on the 14th of feb and its the 15th should i take a test or am i jumping to conclusions and just calm down because it just might be late
22 Jan is 24 days before your cycle you are expecting now. Even if his sperm survived 5 days (very unlikely) inside you waiting for ovulation and you ovulated 16 days before your next period (unlikely - average is 14 days). You still have an almost zero chance of being pregnant.
I think the 28th of Jan would have been the earliest time unprotected sex could have a reasonable chance of getting you pregnant.
If you have any doubdts, get an early detection pregnancy kit, read the instructions and test. Use the second stick to test 7 days later to confirm the results.
Take care and I hope you get the outcome you are trying for!