Uy, yan talaga common sa pregnancy, lalo na kung naturally chubby ka na sa chest area! Ang kilikili natin ay puno ng lymph nodes at tissue na very sensitive sa hormonal changes, so swelling doon during pregnancy is totally normal, some of us mommies noticed it around second/third trimester and it went down after giving birth. Since walang pain ka naman, likely ito ay fluid retention at hormonal bloating lang, pero better to mention it sa OB mo on your next visit just para ma-check lang niya properly at ma-rule out kung hindi siya related sa lymph node concerns. Marami sa circle ko ang nagsabi the same thing, so hindi ka mag-iisa dito!