I have pcos, I have very irregular periods so to me it is very normal that I am about 4 weeks over due for my period. However for about the last 3 weeks I have had sore boobs. Not overly painful but sore when pressure is put on then. And my nipples r super sensitive. I have a large bust so I don't feel like they have grown but I'm starting to see veins, not overly predominant but I can't recall them being that noticeable in the past ( maybe I'm monitoring them too closely and making things up. I have has 3 pregnancy tests over the last 3 weeks and all are negative. I have no other symptoms of pregnancy. It's doing my head in please help with any of your thoughts or advice Thanks