Burrowing deeper?


Hey there have any of you experienced a second round of implantation spotting that feels like a light pulsing at implantation site on and off for a day or so followed by brown cm or spotting ? I had some last week around 4 weeks and I am 5 weeks today. It seems like maybe it is borrowing deeper? But maybe these are signs of miscarriage. As always hard not to worry:)