Hi, I have been on the pill for 2 years and had my last period on the 14th June. I had unprotected sex roughly 4 days before my period came (my cycle is 28 days long so I was not ovulating during this time. I have noticed that over the past 4 months or so I have put a bit of weight on but thought this could be due to being a first year university student and being a lot active and eating a lot more than I used to. However, over the past few days I have experienced sensitive and sore nipples. This has worried me that I could be pregnant. I have taken a clear blue test today which came back negative, but I am still worried due to the sore nipples, I wondered if you have any alternatives to why my nipples may be sore as this is not common for me.