So starting mid morning Ive been having some pink on the tissue when I wiped. I just had my ultrasound yesterday and everything looked fine. I haven't had any cramping. I ran out of my crinone and switched to endometrin that my friend gave me that she had left over from her transfer and it has been causing me some irritation. When I wipe it kind of burns. I can't tell if the pink is from the outside or the inside, but when I did my noon endometrin there was no blood on the suppository insert device, but still pink when I wipe. I'm thinking its just from switching products and having some irritation. I feel silly calling my RE about it. Has anyone thats been on progesterone had similar experiences?