Has been a girl for two weeks. She has no more than about another week, assuming a regular cycle. She should just be coming out of the ovulation phase and be entering a "safe" week. Safer, at least.
People are all (rightfully) calling out page 6, but the last panel of page 5 was already reading as very suspect to me, what with the angle of her face, opening of blouse, and viscosity of the fluid