Positive test

Hi, We’ve been trying to conceive for 5 months now, I got a “Yes+” on a digital test today 2 days after my late period.

I’m very nervous because I was taking antibiotics and prednisone last week for a sinus infection... prednisone can’t cause a false positive right? I don’t want to get my hopes up, I’ve been thinking I am because I’ve had headaches and super emotional, boobs hurt but I’m Nervous.