Hi @Tinkerbell098 I do think it's much of a muchness in relation to HSG or HyCoSy. They offered me a choice of the two (actually a HSG or HyFoSy, with foam), and I just remember thinking I'd prefer the X-ray to the scan, as my previous u/s scan was SO uncomfortable!
Anyway, I have an update of sorts... I was meant to be having the HSG this cycle, and so we were going to have to abstain from TTC this month due to the X-ray. However, I've just been for my antral follicle count. She found nine follicles overall, which I think is good? However, they were spread out - 7 in my LHS ovary, and only 2 in the RHS ovary, along with a dermoid cyst in the RHS. Does this mean every other month of TTC is a write off? 
I mentioned having to abstain this month for the HSG and asked what she would do. She said that as she could see a maturing follicle on my LHS (i.e. I am ovulating from my 'good' side this month), she would TTC this month, then postpone the HSG to next month, when I would be ovulating from the RHS (the side with the cyst).
So I have cancelled my HSG and told DH we need to get busy this weekend.
The radiographer advised we do it every other day, not daily. Much like @Purple29's method! Today is only CD7 so we have not left it too late.
Just feels like this journey is one piece of bad news after another. All I want is a baby!! Everyone else can do it, why not me?!