Old Navy Pink T-Shirt NWT

100% Cotton Shirt NWT I brought this home about 6-months ago. I noticed a stain on it when I got it home so I put it aside with the bag and receipt to take it in for an exchange but then life happened and I totally forgot... Stain could come out- I have no idea what it is. I have this shirt in 2 other colors and would just keep it and wash it with some shout spray but my size has changed so I’d rather pass it on. The color is pinkish-purple and pale. Very pretty.