I have PCOS been TTC for 3 years. I have regular periods and I’m 7 days late. I tested on day 4&5 and both was negative so I decided to wait to test again Monday morning. Anyways, I’ve been peeing way more, having aches in my back, legs and arms. Light abdominal cramps but no sign of af. My symptoms-are usually worse the less sleep I get. Could I still be pregnant with tests being negative at 5 days late ?