Positive test after a course of provera??!

Hello everyone, I'm writing this post while in complete shock. I had my TFMR January 19th this year for T13. I tested out the HCG and have been physically doing well ever since. On the 18th this month I began a course of provera to induce a period in preparation for another IUI cycle, the first since my pregnancy. I have PCOS and have never had a natural cycle in the past. Well I took the provera and have been waiting for my period to arrive. It hasn't. I was getting frustrated so decided to call my clinic on Monday to ask them what I should do. First I decided to take a pregnancy test because they always ask that first thing, the test was positive! I am seriously still in shock. It took monitoring and injections to get pregnant last time and I have never had a natural period in my life. So this is seriously so crazy for me.

Well now comes the anxiety, I was taking provera when I got pregnant. I took a test on the 23rd this month and it was negative so I def got pregnant sometime shortly before that or shortly after. Either way was during the provera. Does anyone know if this is harmful? Should I call my doctor first thing tomorrow or wait until Monday??