Hello! Another T1 signing in! I had the joy of developing T1 during my first pregnancy, and then went on to have 2 more dc. All 3 were fine and didn't need SCBU.
I found my insulin requirement just went up and up through each pregnancy, to quite incredible levels (more than 5 times higher than usual by the end!). The only answer for me was test, test then test again. I did go on to a pump during my 2nd pregnancy as I was getting to the point of having to inject anything up to a dozen times a day to attempt to keep in range. The flexibility of basal rates and the ease of doing small boluses as needed was so much easier with the pump. I've never looked back and still have the pump today.
As with the others I was monitored a lot at hospital, I was induced with dc1 & 2 at 39/39.5 weeks. Gel didn't do huge amount, waters were broken, then oxytocin drip. After that all reasonably straightforward, no instruments, stitches etc. Dc3 I went into labour at 38.5 weeks naturally and ended up with emergency csection as her heartrate dropped - nothing to do with the diabetes though, just badluck and her being in odd position, she had an APGAR score of 9 at birth though so no after-effects.
After birth each time, for a few days, I found I needed only a tiny amount of insulin. This gradually then built back up to pre-pregnancy levels.
I can say quite honestly my blood sugars were most certainly not perfect ALL the time, when your ratios are constantly changing it is just not possible to get it 100% right all the time. Do not beat yourself up about the occasional bad day, just try to get it more right the next day. The odd nightmare read is unlikely to harm your baby, try and remember the bigger picture not stress yourself too much.
One last thing - do make sure you drink lots of water, I found this really helped with my levels during pregnancy for some reason!
Good luck!