Is It Possible For The Nasal Bone To Appear Later In Pregnancy After An Equivocal Result At My NT Scan At 13 Weeks?

Hello doctor, i am 13 weeks 2 days pregnant now. And my age is 31 years now... day before yesterday i went for NT scan my babies NT is 2.4 mm and the doctor said that nasal bone is equivocal, please tell me what can I do now already 6 months ago i lost my first baby due to partial agenesis of corpuscallosum and partial brain growth... Now this is my second pregnancy and doctor said nasal bone is equivocal please suggest me what can do now? And i am waiting for dualmarker result now... Please tell me is it possible to see nasal bone lately?