Vag pic!* Is it the baby sack?

I have a weird white ish looking lump inside my vagina I have had cramping today and sore pelvic pain which seems to be constant baby is still moving however is a little reduced today I'm a single FTM n can't really look down there midwife said on phone if I still feel I want it to be checked then to go in sorry for the vagina pick but someone plz help

[Photo removed by Glow]