Confused

So my fiancé is in Poland right now he left towards the end of January so about 3 months, but before he left we had sex, a lot. Sometimes unsafe, but I took plan B. I’m in college and I would love a baby, but not exactly the right time, anyway, I’ve been having extremely sore breast which have grown excessively, my mood swings are crazy and I’m feeling depressed and on top of that I have like acid reflux and headaches. Which could also be symptoms of stress, which I’m a college student so it’d make sense. I’ve had my period, but that doesn’t always mean anything. Am I worrying myself or should I take a test to be safe? Need help 😬 I don’t exactly know how to go about and asking him would worry him.