Right inner thigh itchy with bumps

Hello everyone.
I'm on my third attempt of ICSE IVF. My 1st attempt ended with no fertilization. second attempt got down to ET of 2 embies, but no implantation :(   I was on PIO for 2 wks following that and couldnt tolerate the IM ingections (had inflammation of but muscles and was unable to walk from the pain. So this time my doc put me on the progestrone vaginal suppositories (Cyclogest). Today is my 7th day post implantation (of two 4-day embryos)
I developed a rash on the inner aspect of my right thigh. Its itchy, bumpy, with small vesicles. I have never ever had a rash there. I am extremely hygiene-conscious  and dont have any known allergies. And the strange thing is that it hasn't involved the left thigh even though they rub against each other when im wearing a skirt or nighty. So that must mean that it isnt contagious and is confined to only the inner right thigh.
Does anyone know what that could be? could it have anything to do with the cyclogest? Pregnancy?
Any and all help is greatly appreciated !
Thank you. And may all ur baby dreams come true.   :)

[kahlua141]

I dont know but was wondering what is IM injections? I am sure the rash  is nothing..but others might no better!

[hope_floats]

I.M. injection is "Imtramuscular "injection abbreviated. Sorry if that wasn't clear.  :)

[Redhenful]

Wonder if you are some how allergic to the progesterone supps?
Also..maybe the rash is a heat rash type of thing??
Good luck..

[hope_floats]

I thought of the allergy But first of all, i dont really have any allergies. I had the progestron injections but didnt have an allergic reaction. Plus if it was an allergy, it wouldnt be confined to that one spot (inner right thigh); but rather spread throughout my body.
It cant be a heat rash because I wasnt exposed to any heat or friction (dont like wearing skirts or dresses), prolonged walking or exercise, or any other causes for a heat rash. Plus if that was the cause, it would be bilateral and not unilateral. I can't even remember when I last got a heat rash. I think i was 12 or in my very early teens. (I'm 33 now, married since i was 24 and never had any type of heat rash or any other type throughout my marriage- thats why my husband finds it very odd).
I'm at my wits end. Anyone who could figure this out truly deserves a PRIZE !  ;)
Thanks 4 replying Redhenful and 4 ur great differentials. I appreciate ur time. :)