Lexapro + Pregnancy

I have been taking Lexapro (20mg) since I was 14 (I’m 23 now). Should I stop taking it? I recently took pregnancy tests and they came out positive. I have no idea how far along I am, but I know it is extremely early. I will obviously have a doctors appointment and ask these questions, but won’t be able to get one until next week so I wanted to come in here to see if anyone had any advice?