As per your history, you had underwent Intra Uterine Insemination and also you are taking puregest, which contains progesterone
Progesterone is the hormone which helps in maintaining pregnancy
, and it is taken externally in the form of pill to have a proper blood hormonal
level which is important for fertilisation, implantation
in the initial period of pregnancy, after that the embryo structures produces another hormone which mimics progesterone, and helps in further growth of baby.
As far as tenderness in breast, and uneasiness in lower abdomen is concerned , they can be either caused by progesterone pills you are taking or you might be pregnant, which can be checked by urine pregnancy test or confirmed by ultrasonography
test, few weeks later.
hope my info helped you
Dr Hari Om Chandrakar