Im kinda freaking a little bit

So I missed my period for June but I havent had sex since April. My period finally came and was normal at the end of June. Just two weeks after that period, I had some spotting for a day but it went away. I had my period again last week and it was really really light and I had no cramps which is weird cuz I usually have cramps a week before my period and I'm never taken by surprise. The period lasted 3 days. Now my breasts are very sore. Any ideas anyone?? 😢