This happened to me and my SO earlier in the relationship, sitting in bed one morning chatting giggling kissing and BOOM, hello hells falls. Those were, WERE Nice white sheets too.

I sat up off my white sheets leaving a big red patch of my Insides on the outside. He stood up without noticing then his eyes went big and I just was sweating, thinking “Yay, I can cry in the shower now...” he just looked to me and asked if I wanted help changing the sheets. I just sheepishly said yeah and immediately tried to fix the dead zone. He was so calm and he kissed the top of my head while I had all the sheets in my hands and just said something along the lines of an awkward ‘yay not pregnant’. He asked if i could show him how the washer worked while I was showering. He just was calm. Even though it took me a while to calm myself down about it, his calm was reassuring like “Yeah I’m a woman, this shit is bound to happen. It’s not gross, it’s just the way I have to live.” I guess his calm allowed me to embrace it, to realize that it’s just blood. And that it’s just a part of life. I guess I was worried more about how he was feeling in hindsight, worrying about judgment.

Just be calm, it’s part of life and you are handling this perfectly. Best wishes.