I have been ttc but had period.lasted 2 days i ended today &my breast are very sore and leaking i have a 1 year old that didn't nurse. what's is it?

Pregnancy test?: It's always a good idea to take a pregnancy test if you have had unprotected sex and your period is early, late, too light, or different. If the test is negative (and if last sex was more than 14 days ago), then your symptoms could be from something else, like a hormonal problem. If you are not pregnant, see a doctor to have your breast leaking evaluated.