J.R.
Hi M. A,
though I cannot speak from experience (by that I mean I don't have clinical insomnia), I just wanted to give my support.
Sleep is absolutely a necessary component for good health. Especially during your pregnancy. Your body is working doubly hard on the inside. Couple that with an active 2 yr old you are bound to get exhausted in a clinical sense.
I don't know how willing a doctor will be to prescribe any medication during the first trimester, as development is in a crucial phase.
I asked my doctor about taking Melatonin (it's the chemical in our bodies that is at it's highest when we are falling asleep),.. it helps get you into sleep. As for staying alseep.. .that's another story all together :)
I also took Valerian for severe anxiety, and an added component to taking Melatonin for those nights when sleep escaped me for a while after getting into bed.
I am not normally so 'homeopathic' - If I have heartburn, I take OTC meds, if I have a headache, I take something...sometimes this means i am taking some pill for 'something' more than 3 times a week... so I am not opposed to OTC drugs :)
but both Melatonin and Valerian worked for me, though I didn't have clinical insomnia, just some sleepless nights. If you are so inclined, and your doc won't prescribe Ambien for you during your pregnancy, or during the first trimester, ask if those things are ok to take.
Good luck to you... I know I can be a HUGE "B" when I've not had enough sleep... may God bring you patience during this rough time :)
~J.~