Any advice?

Kelly • Trying to conceive our little rainbow baby 👶🏼🌈

I miscarried on 15th November and had a d&c; on the 21st. My HCG levels dropped completely within the first few days and I ovulated around January 1st. It's now been 8 weeks since my d&c; and still no sign of a period? I have taken a few tests and they're all negative. Anyone have any advice or should I call my doctor to check if there is anything wrong? It advises online that your period should return within 4-6 weeks