“Tell me you’re a mom without telling me you’re a mom”… Is this blood or just my son’s spilled drink? 🤦🏼‍♀️🤣

We went out to eat with my 1 year old and I’m 38 weeks pregnant as of tomorrow. I had my one year old sitting with me and he swiped one of the cups of Coca Cola on the table. I honestly don’t remember if it actually spilled on us (I have really bad pregnancy brain 🥴) We ended up getting home about 2 hours later and I noticed my pants were really wet on the crotch and butt area. I went to the bathroom and saw this. I’m not sure what to think because I had on thin black leggings and boyshort style underwear that were that athletic material, also pretty thin. The only other symptom I have is I think I’m getting pelvic griddle pain (I think it’s called)