Hay, importante talaga ito i-check with your OB as soon as possible kasi di dapat basta-basta ang anything lumilitaw sa breast area, especially ngayong pregnant ka pa lang! A few of my mum friends had similar bumps and ang iba ay just hormonal changes from pregnancy, pero iba naman ay kailangan ng treatment, kaya really best to get it checked directly para may peace of mind ka. Keep an eye din kung may changes siya in size or kung masakit, at report mo agad sa doctor mo next visit or even sooner kung worried ka talaga.