Cd 69!? Could it be due to HSG?

Hello! I'm on cycle day 69 and not seen my af yet! I had the hsg test done on cycle day 12, could this affect it? 
Also, when I was like a week late
I did take a pregnancy test and got a very faint line after the indicated time so I was over the moon cos I thought I was but took a few others and nothing. Haven't taken any in a few weeks now.
Anyone been in a similar situation or been late due to HSG?