How do I tell him I’m not okay

I’m not an emotional person, so when I found out I lost our baby at 9 weeks, I was devastated. It wasn’t a planned pregnancy as we were on birth control, had been told <a href="https://glowing.com/glow-fertility-program">IVF</a> was our only option and on meds that cause infertility. So at first we were freaked out, but we got used to the idea of having a baby real fast. When we found out, I was like ok, my so cried but then he was fine. It’s been almost 3 weeks and I had tons of complications with my 3 D&C’s. Yes...3...don’t ask. I have spent the past 3 weeks worried about my health and haven’t had time to really grieve. So my only time is at night when I wake up panicking because of a dream that turns into water works. He is asleep and doesn’t know. He always asks if I am okay. Me being me I put on this fake smile and say I am okay, but really I want to break down and sob my heart out. How do I tell him I am not okay?