hey dear... my cousin had her second daughter born exactly on my edd... we spent our teens together and we're close; her baby came 4 weeks early and was in NICU for almost two weeks due to jaundice and an infection, gave us all a pretty bad scare. when she arrived i took it as my niece and my angel cooking up a surprise for me and wanting to say hello.
i also have to say my cousin was really understanding towards my loss, she never complained about her pregnancy at least not when i was around and well.. two months after my loss while she was still preggo, she called me up and told me she feels terrible that i've lost my baby, that we're not expecting together (we joyed about this so much) and that she feels guilty for still being pregnant, as if she robbed me off something... we cried our hearts out together and well... that helped A LOT to manage her pregnancy. she also talks about my angel as if he was a real living baby, like her daughter is, so i have no issues with her.
other friends... i love babies so much that whenever i see my prego friends i just think how lucky they are, and always hope they'll never get to know what this pain means. what did piss me off is when a couple of them fell pregnant accidentally and well... debated over having an abortion with me just few weeks after my loss. that's a thing i couldn't deal with at all and had to use all my good manners not to slap them. but in time - and with LOTS of practice - it eased and i manage even those conversations too, although it hurts.
but... i do get more emotional when seeing pregnant women in general as my EDD approaches. i didn't have this with my first angel, just with my second, it's something automatic and i can't control it, it just comes. and then well... if i have to see my pregnant friends or their LO's and so on, i go and if i get moody i just tell them. most of them are understanding and just hug me without attempting to console me with stupid words (this also was learned over time from both sides! i literally gave them directions on what to do when it happens!).
hope this helps!