Tmi, input pleaseeee

So this is my third month ttc, I got pregnant last April and for two days I had brown streaks in my underwear and then nothing until I found out I was pregnant two weeks later. It happened around the time I was supposed to get my period so I thought it was just my period coming anyday. I haven't had many symptoms at all, my boobs are barely sore and I'm just gassy and the smell of cigarettes makes me gag. I had creamy white cm earlier too if that means anything. I ovulated around the 19th to 23rd and my period is due Feb 5th. Does implantation happen around this time??