I had an MMC last July, so when I fell pregnant one cycle later, I was offered reassurance scans by my EPU. Had one at 7 weeks (due to spotting) and another at 8 weeks for reassurance - both were good and it did set my mind at ease that all was okay. However, at ny 13 week scan, it was then discovered the baby had a severe abnormality which meant she wouldn't survive to term.
I'm now 7 weeks pg again and am weighing up what to do. My EPU have stopped offering reassurance scans due to being over-subscribed, so unless I go private, I have no choice but to wait until 12 weeks.
On the one hand, I'm very much in the 'ignorance is bliss' camp, and I'm also very mindful that even if I have one now and things seem fine, things may not work out further down the line.
On the other - if there is an issue, I think I would rather know sooner rather than later.
I guess what I'm saying is that it's a very personal choice. My experience is (thankfully) rare so if you do have one and it goes well, I'm sure things will work out for you and your DH :)