tmi leaking breast

My husband and I have been ttc for quite some time. This is where the tmi begins. Well last night we baby danced and I was on top. He was sucking on my breast and next thing I know I hear him gag and I ask what's wrong . He said something came out of my breast. I didn't believe him but today I squeezed my breast and milk came out. Let me add I have a 2.5 year old I breast fed for 4 months. This has never happened to me before. Can it be an early sign or pregnancy? Has this happened to anyone and they ended up being pregnant. Also I am on cd 11. What should I do!