Eight months into being a mother I was not necessarily thinking clearly about my future plans.
Me neither! I would not have made good long term decisions. This is where it helps to have a supportive family around, people who will be kind but straight talking with you.
Absolutely!! Another thread was deleted for speculating about PND, but I find it 100% plausible and ironically offensive as it just heightens the stigma around PND. It's perfectly ok to say "X celeb's behaviour was strange because they were suffering from a cold or virus that day" but not ok to (compassionately) speculate that someone might be behaving irrationally due to PND which statistically affects a huge number of women?! It increases the pressure that women should be nothing but glowing, happy mothers after birth and should forever be held 100% responsible for the decisions they make during what is obviously the "happiest time of their life" 
At 8 months I was also in the grips of PND and contemplated the most outlandish scenarios which seemed like the only option AT THE TIME which would make me feel better. I thought of running away from my husband & family to a different town, selling my flat or renting it out, then downsizing into a small, cosy place with just my daughter and a maybe a nanny. Basically, I wanted to be alone with my baby and far from my old life which seems exactly what Meghan is doing...only she had the balls to pull it off.
With all respect and I think many women with PND will agree compassionately, you do not make rational decisions in the year after having your first baby. I gave myself a deadline of 18 months (summer 2020) and if I still felt the same by that time then I would make those drastic changes to my life. And somehow around 10-12 months, the fog lifted and I feel like old self before pregnancy again. I'm slightly aghast the stuff I thought about and very grateful that I didn't do something impulsive like end my marriage or move out during that time.