CPTSD and pregnancy/childbirth

Ok so I have a diagnosis of complex PTSD from childhood sexual abuse. I spent a long time in psychotherapy and previously had mental health unit admissions because of the depression associated with it.

I never thought I would get to the point where I could have a relationship, let alone get married and plan a family.

The thing is I am now 23weeks pregnant and it's triggering my PTSD massively.

My husband knows about my mental health issues but not abiuathe abuse, so I can't really talk to him about it. I have been thinking about telling him but it's complicated and I don't want it to change the way he sees me.

I have made it clear to the midwife and obstetrician that I have PTSD, but they don't understand.

I am incredibly worried about giving birth. If I have found examinations of my abdomen triggering, how will I cope with labour?

I am having nightmares and flashbacks everyday. Feeling low and anxious all the time. I don't know how to cope with it and don't know where to get help. I'm not currently under any mental health professionals.

Has anyone else here been through similar?