Ay, alam ko yan! During pregnancy kasi, ang hormones natin ay nagsasama-sama at nagiging sensitive ang lahat ng parte ng katawan, including the breast area, parang mas tender and achy talaga, lalo na sa first at third trimester. A few of my mum friends complained about the same thing, at sabi ng isa sa kanila, it was worse pag nagpapakompresa ng bra or kahit light contact lang, so she switched to softer, looser ones. But since you're already 25 weeks, it's best to check with your OB just to make sure everything's normal, especially kung may other symptoms or kung talaga namang masakit, they can give you better peace of mind at proper advice based sa current check-up mo.