Ladies help period 12 days late

Tia • 🍼Baby Girl 👣🎀 - Truè Sapphire 💕

So my period was supposed to come on the 5th and today is now the 18th and still nothing we’ve got over 7 bfn but my husband and coworkers thinks something up , because this month it hasn’t came yet and last month it was late but I still got it . I normally have regular periods but I never get pregnant so maybe i have PCOS idk ladies comment below .