I have the same problem. This happened after the first sunbathing event after sister arrived. When she goes to the doctor with you. Then I spied on Ann and Melinda in the bathroom about the lump in the breast, but I can't trigger the next doctor visit. And my option to sunbathe with Melinda dissappeared. This is before I was able to buy the necklace, so I have no idea how to get that now. It is so hard to tell if this is bugs or if it is supposed to be this way, because the progression is arcane as fuck. And I can't even remember how I got everything the last time I played this game. Anyone else started from the start in 9.9 been able to progress to the new content?