It has been 45 days post unprotected sex (August 15th) in which the man never ejaculated. I have taken 8 pregnancy tests that have all come back negative. Including one I took this am.

My last full period began July 25th. September 1st I had a 1 day period. My breasts had been sore for a couple weeks and feeling full. Now they are back to normal but I have noticed my nipples getting harder then normal. No morning sickness.

I have scheduled an apt wit my obgyn but they don't have a opening for a couple more weeks and only do urine tests. She seems to think I am not pregnant bc of the tests. But I have not met in person with her yet.

I have always had irregular periods. Lately I have added about 1.5-3 hours of manual activity to my daily routines.

What are the odds I am pregnant? What other reasons might there be for my nipples?