Uy, I totally get your worry, three months delay plus all those symptoms is scary talaga! Pero honestly, if your PT came out negative twice at your blood and urine tests were negative din, it's unlikely you're pregnant, kaya the Cipro should be safe para sa UTI mo (that's what your doctor prescribed based sa results niya). The bumps and cramping you're feeling, the acne breakout, honestly, stress and hormonal imbalance from the delay itself can cause all of that, a few of us moms experienced similar nung nag-delay kami. Best thing is go back after the 7 days like your doctor said and push for that ultrasound so you can have peace of mind, that's what I would do din, because knowing what's really going on will help you relax more than worrying. Fingers crossed it's just the UTI causing the delay, and once treated, regular cycle mo na ulit!