im a dad and work in health care. so i hear what your saying but maybe you mean what are the safest positions for you to be in for the baby while doing that activity,if that is the case as you get farther along the size of your belly will be the guidline, at one point your partner will not fit in the missionary position like before and this will also be after you on your belly with partner on top. doggie style is a safe position also side by side or spooning, basicly dont put any direct pressure on the baby...now if you mean what you wrote,, its not harmfull after you get the news your pregnet and if you and the baby are healthy with no known complications
like my xwife was you could have sex right up until delivery, i dropped out from that before only from my own reasons, but we did it almost to the end...why who told you having sex was harmfull during pregnancy
? i never heard that before..