I have a question x: !! can anyone help me out or give me advice? (: soo I haven't been…

I have a question x: !! can anyone help me out or give me advice? (: soo I haven't been breastfeeding for about 3-4 months already, and all of a sudden these last two days my breast have felt so heavy and full, I did have unprotected sex a week ago, but I don't think I would get pregnant right away, idk this is confusing as hell!! someone help!? :'( picture for attention! <3 my buggaboo