Hi
I am 9 weeks pregnant right now, and I am pumping. Though I have been pumping for over a year now, independent of the choice to become pregnant.
I use the OmniPod, which I love. If you want a pump with an integrated meter, so you have less to carry, the OmniPod is a great option. If you are not familiar with the OmniPod, it's the only tubeless pump available. You wear a "pod" that hold insulin and inserts a cannula. Then, you carry separately the PDM (personal diabetes manager) which controls the pod and stores all your settings and ratios. The PDM has a built-in freestyle meter. And because there is no tubing, you don't have to physically carry it with you at all times. You only need it near you whenyou are bolusing for a meal, testing your BG, or changing pump settings. You can get more info at
Home - OmniPod Insulin Management System.
I can't comment on how many weeks you can be before starting on an OmniPod, but I know plenty of pregnant people wear it. Pumping during pregnancy was highly recommended to me because you can micro-manage your BGs so much easier with a pump. My BGs have been great during pregnancy so I am happy with my setup. I have been keeping my fasting BGs in 70s-80s and keeping post-meal BGs below 130.
The OmniPod does not have CGM built in yet, but I was wearing a DexCom separately for a while. Originally I was eager to wear it during pregnancy, but I came to realize that it's really not accurate enough to trust, and that I during pregnancy I find myself testing my BG every hour or 2. So i felt like why do I need to carry around another device and waer another sensor when I don't trust it anyway. Also, these CGMs will beep at you when low. With the DexCom it has a built-in alarm at 55. So because it was inaccurate, it would always wake me up middle of the night saying I was low even though I was really 100 or 120. So I got sick of it. And now, especially, since I am keeping my BGs in the 70's and 80's, I am sure it would wake me up every night multiple times! So think it through before choosing a poump just because of the CGM. I know a few people on the MiniMed CGM pump and they hate getting woken up at night (as do their husbands!).
Good luck choosing a pump and with the pregnancy!