What does this mean?

Veronica • 4 miscarriages 👼🏻 I just lost my 5th pregnancy to an ectopic pregnancy. #onetube ||| I need my rainbow baby 🌈 || 19 years old || Jersey girl ||

1. Does anyone know what a normal uterus size is? I got my ultrasound two days ago and I should be around 4 weeks pregnant. This was mine- 7.0 x 5.2 x 3.7

2. About my endometrium- “Heterogeneous thickening of the endometrial stripe complex of the level of the fundus, where it measures 16mm thick.

3. What does cul-de-sac mean? My paper says “Trace free fluid in the cul-de-sac”