I just wanted to ask..

So me and my partner engaged in sexual activities, He used protection a lot. Then I'm just wondering, If I could be pregnant or its just a sign of PMS, Lately im having Sore breasts, And high body temp. The app says I could have my period within 7 days. Thats all I am feeling. I'm kind of new to this, Sorry for the question.

-Any comments would be helpful thankyou!