Weird discharge

Hey guys so I had sex for the first time on the 9th and then I got my period I got off my period and then had sex again with the same guy we used a condom both times and ever since the I’ve been a little itchy and there is a yellowish discharge and sometimes it’s a little brownish with a little bit of red (which I think may just be from me itching and irritating it) there is no pain or anything else i also have been using summers <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> products which I now know are bad for you and I just stopped using them like 2 days ago. Has anyone else experienced or may know what it is?