Omg please tell me I'm not dreaming!

okay so here's my situation. I took my last birth control pill in mid-February. my first period was 17 days late but when I did get it it only lasted 3 days which was really strange to me. I chalked it up to my body returning to normal after birth control and didn't think any more of it. my period ended on the 7th of this month and I've had two random days of spotting as well. only thing is is I've been feeling really off I've been having headaches and back pain been feeling nauseous and generally just not myself so on a whim I took a test and this is what I got. still in shock going to take a digital in the morning I have no idea when I ovulated.