So sorry to hear about your baby.

I had a missed miscarriaged for my first pregnancy, was picked up at 13 weeks via ultrasound (first ultrasound in the pregnancy) I had a D&C the next day. Like you I immediately started thinking about TTC again. I had a AF almost exactly 4 weeks to the day of the D&C and then fell pregnant the next cycle.

Good luck, it is an emotional time at the moment your hormones will be all over the place but be gentle on yourself, and good luck with TTC your next pregnancy