I have not had a period since oct 25th.Nov 23-26 I had a surge and had unprotected sex at the end of Oct all through Nov and Dec. HPT were all negative and the urine tests I did for my dr were negative I have had 3 children and had to have blood tests to get the results do I need another to tell if I am pregnant again? My breast suddenly have a heavy feeling. What is going on with me? Not on any meds except for insulin

We can't give you a diagnosis over the internet, we can guess, but that won't help you.

Sadly it's up to you to find out, go to your doctor, tell him/her your symptoms and go from there.

Good luck.