Will my pregnancy be covered under Tricare Young Adult?

I am a dependent of my dad, a retired service member, and was never and is not in full-time college, and i am 22 years old. I have gone awhile without health insurance because i couldnt afford it when i was dropped. I was dropped before the healthcare reform went into effect and i did not know i was eligible again until a few months ago. i havent been able to afford it but my mom has recently been able to afford it. However, I recently found out I was 6 weeks pregnant. I AM unmarried and i otherwise completely qualify for Tricare Young Adult, but since i have not yet enrolled and my pregnancy is "pre-existing", will my pregnancy be covered under Tricare Young Adult? And if so, I realize the child would not be covered at some point, but at least until the baby is a few months old, would i and the baby be covered? I would appreciate someone who has recently gone through this or someone who works for or used to work for Tricare answer this question. Not an "I dont think so." or "I think so". That would be greatly appreciated, thanks.