No, pregnant women are not admitted to Healthcare Units unless they are medically or mentally unwell. They are housed on the wings with everyone else. It is quite a head fuck the first time a pregnant prisoner with a huge belly walks past you...
I am firmly against non transitioned trains women being placed in female prisons. The female inmates are exceedingly vulnerable. www.theguardian.com/society/2015/nov/28/closure-of-holloway-womens-prison-revolution has a really clearly written summary of the issues with the women's prison estate and the need to implement the Corston report.
tinsel really, do fuck off. What a frankly dangerous approach, of let's hOuse male and female prisoners together, what's the worst that might happen, of they might have sex, tee hee, like OITNB. No, there would be horrific assaults on women, multiple violent rapes, coercive sex, even murders. I am no exaggerating or scaremongering. I am frankly frightened when in the male prison I work in. I feel intensely vulnerable and aware of how small and vulnerable and female I am. The rates of violent assaults is not a joke, nor are the rates of bullying and minor violence. The use of spice is really adding to the risks. So there is not a prison governor in the land who would even consider your suggestion.
somedyke lesbians in prison is an interesting one - there do seem to be higher numbers of gay women in prison, inmates and officers. Very very different to OITNB. Which is of course fiction. Whether other women feel uncomfortable naked in front of lesbian inmates varies a lot - really depends on the individual woman and is she is being a dick and ogling/leering in a manner that makes others uncomfortable or if she just gets on with having a shower and/or a chat and a joke like everyone else. Lesbians are not immune from being bad people. Oddly I'm not aware of high rates of bullying gay inmates in the female prisons, unlike in male prisons.
Sorry this post came out a lot more random than expected...