So me and my boyfriend had our first sexual encounter the other night. He swallowed my cum and I also ejaculated near his anus but I dont believe in it. After 24 hours he came down with a flu and developed a small heat rash on his hip. Im scared that I had HIV and dint know about it and I've given it him. Ive only ever had unprotected sex once with a virgin who now has a child. Ive been tested but im waiting for result back, any advice to stop me worrying?