Is this actually colostrum?

I gave birth 4/7 and was sent home 4/8 and never got a meeting with the lactation specialist or anyone to ask questions about pumping or anything. I am just now starting to get my supply and was going to collect colostrum in oral syringes but I am not sure if this is even colostrum. I read it is typically a creamy yellow color. Anyone have any ideas on if this is actually colostrum or not? I will add a pic for reference below