So confused 🤦🏻‍♀️

So I’ve been receiving my depo shot since my daughter birth January 20 and I’ve been having unprotected sex and have not been using the pull out method. So I’ve been bleeding for about a week now but Ive been getting sick for the past few days at the same time at night. I’m not sure if this is my period and I’m clear of pregnancy or this is the pregnancy blood that you get when pregnant. Please help someone