I need help

Hello I duno where to start me and my oh have been at it like rabbits lol I am breastfeeding my LG she will be one in 4 weeks anyway. I ant had a time of the month fully breastfeed so they ant come Bk yet 2 days ago I went to the bathroom and there was a bit of spotting it’s still there no cramps or anything but my boobs hurt a little been sick a few time dun a pregnancy test and that was negative will post a pic I am really starting to stress over it