Hello,
I spoke to my consultant on Friday, as I was waking with higher readings than i was going to sleep with. The 2 options he suggested:
1)That i was having a mild hypo in the early hours and that my sugars then 'bounced' back up hence the higher reading by the time I tested.
2)Or, to increase my levemir and increase my novorapid ratio, ie. i was taking 18 units levemir at night (pre pregnancy was on 12!) and used novorapid ratio of 1:7 with dinner, hence reading of 6ish before bed, previously i would then wake with reading 4-6. Now, I take 20 units levemir, but work on ratio 1:9 with food, and aim to go to bed between 7-8. However, I take levemir at 7pm, take novorapid and eat at 8pm and go to bed 10/10.30pm, so my peaks of levemir and novorapid will be very different from yours.
Also, I am 25 weeks, and for the last 2 weeks I have had to change both levemir and novorapid every couple of days; my consultant said that effect of pregnancy on diabetes has no consistency from person to person. I appreciate this isn't particularly helpful but i thought it may be reassuring to hear that someone else is having to constantly change their dosages too!
I do hope that you manage to play around with your doses, in the earlier stages of pregnancy i had frequent nightime hypos, nightly for many weeks, and it was as you describe a battle to sort it out. I did have to go to bed with reading in double figures to avoid it.