SKIPPED PERIOD

Maddie
hi I had sex last in April and had my May period but my June one never came! We used a condom and the boy didn't...you know. So like nothing couldve even gotten me pregnant but I'm freaking out. Should I take a pregnancy test??? Also in June I lost 10 pounds and was very stressed bc I moved home and was in summer classes. I think weight loss and stress made it skip. Can someone give me peace of mind please! Also I only weigh 110, in very tall and skinny. Thanks for anyone that helps :)