Ttc is this ovulation or implantation

I’m ttc as my son was stillborn on the 03/02/18 Doctor didn’t say we couldn’t try. I’ve had one AF since his birth and the other day on two occasions I’ve had egg white discharge with light pink streaks in. It’s only happened twice and I’ve never got this before. Can’t remember if it got it with my son as at the time I was going through a cancer scare and only found out I was pregnant six weeks gone 😂 I’ve done a pregnancy test and it’s come back negative.

Fingers crossed for our rainbow baby! We’ve been ttc since the 06/03/18