I got an HSG test done last month because I was supposed too start

<a href="https://glowing.com/glow-fertility-program">IVF</a>

this month, however my period came regular last month and after getting my tubes flushed I finally ovulated with a positive OPK on April 19th morning of the 20th. I was asked too start my PROVERA this month too induce my period but it's been two weeks now since my last pill ( I'm on 1 pill for 10 days ) and my period has still not started, it's been 5 weeks since my last period now and even with medication will not come on but has every month before? Like I said I'm supposed too start <a href="https://glowing.com/glow-fertility-program">ivf</a> this month and can't start monitoring or trigger shots until my period comes.

Is this a sign I could be pregnant or should I be worried?