Good with the bad

Pregnancy is a though time for almost every woman. Some have morning sickness, other have back pains, problems with digestion... I am one of those who is very lucky and have none physical problems, but lately I started to notice a big problem. I am in my 7 month of pregnancy, and still working. Before I didn't have much problems like that, except "pregnancy related forgetfulness" ( I forgot to lock my car...twice, I forgot an important meeting...) - that kind of things did not happen to me before. I am well organized, and a little bit perfectionist, so I usually even write lists of chores, to prevent me from forgetting and to get better organized. But at my workplace quite a few coworkers, women who are mothers, said it's quite a common thing during pregnancy.

Now I'm facing a bigger problem. Because of nature of my work, which is very stressful, I find it hard to keep my cool in communicating with others and not to overreact. And adding the fact that I don't sleep very well anymore, and that my father is seriously ill and that we don't know how much time he will be with us, it all combines and results in my high sensibility and usually even in conflicts at the work place. I don't like that- getting into conflicts with everyone just before I say goodbye for one year, but IT'S THE HORMONES! I CAN'T HELP IT- I CRY ALL THE TIME, I GET STRESSED OUT SO QUICKLY, AND I HATE IT, but unfortunately it will not pass until the end of pregnancy. :( And some people, like my husband, are very understanding, while some of my coworkers, who are also mothers (go figure!) cannot take that into mind!!!! What a shame! I am sad, frustrated, scared and I feel terrible in the time in which I should feel at my calmest, at least for the sake of my baby. :((((
Quite frankly, I think pregnant women, from their 7th month on should not be working anymore, because of hormone imbalance and lower capacities to do the same job with best outcome, but at the end it's my doctor saying the last word if I will stay at home or have to continue working.
My friend, who comes from the profession, advised me to say that I have severe back pains, but do I really have to lie? Isn't it enough, that I have a stressful job (I even get a bonus for a more stressful job), that I have low hemoglobin level in my blood, and as a result get very tired and dizzy, so it's not actually good for me to be working or driving?
We will just have to wait and see if it is enough for my doctor or will I have to take the good with the bad, or in my case bad with the (mostly) good during my pregnancy.