Progesterone support(shots and suppositories)

Hi Ladies,

I had a successful frozen transfer couple of weeks ago. My doctor has me on Estrace 3x day, Progesterone in Oil(shots) 1 cc a day and Endometrin (progesterone in vaginally suppositories) 3x a day.

He said I will stop my PIO shots at 7 weeks and continue the suppositories until 12 weeks, but I am so so nervous to stop the shots. Any of you had a similar situation? Are the suppositories along enough?

My first FET failed and I am super nervous now with my 1st pregnancy.