average time from negative test to start of period

Monica • 👼🏼 👼🏼🌈 👶🏼
I started bleeding back on Jan. 15th. I then had 24 days of bleeding. I  had stopped bleeding for 10 days, but my HCG was still over 100. Then this last weekend I got crazy cramps and started bleeding again and passing more clots. Since then I have started getting negative at home pregnancy tests! I'm assuming this bleeding was not my period since my HCG was still so high at that point. But seeing as it's been just about 6 weeks since this all began, I'm getting antsy as to when will my period start. 
I'm curious on average how long it took for others to go from negative test results to their first period? Thanks!!