You're welcome bro
Nah. Not buying the anal angle either.
No blood during anal if you're doing it right. Yes there's a risk of a tear if you're rough or unlubricated, increasing the chance of fluid exchange and subsequent infection, but it takes very little to pass an infection.
I imagine a tear that lead to significantly visible bleeding would be too painful to continue in any case.
Pregnant sex carries the same risks to the man and woman as any sex at any time. The additional risk during pregnancy results from putting pressure on the mum's belly, squeezing the unborn foetus inside the womb. Avoid that, and the authorities (these days) pretty much agree there's no known harm done.
... In fact, some authorities maintain there is a potential benefit to the foetus, from the hormones and other physiological states associated with the mum's happiness. When she's feeling sexy and loved, the foetus literally swims in the same feeling too, and the emotional state of the mother is proven to have an impact on the development of the baby.
