Protein needs don't stay flat throughout pregnancy, they generally increase as the pregnancy progresses, and understanding roughly why can make it easier to plan meals sensibly rather than guessing. As always with anything pregnancy-specific, your doctor or a dietitian familiar with your situation is the right source for your actual target, since individual needs vary based on your weight, activity level and whether you're carrying more than one baby. What follows is general context, not a personal recommendation.
In the first trimester, protein needs are usually close to what they were before pregnancy, even though this is often the trimester where nausea and food aversions make eating anything consistently the hardest. If meat, eggs or dairy have suddenly become unappealing, a whey protein shake can be an easier way to get some protein in on days when solid food feels like a lot, though this is worth mentioning to your doctor if aversions are severe or you're struggling to eat much of anything at all.
The second and third trimesters are typically when protein requirements climb more noticeably, since this is when a large share of foetal growth and the associated maternal tissue changes are happening. This is also usually the point where energy and appetite pick back up for a lot of people after a rough first trimester, which can make it a genuinely easier window to focus on hitting a higher protein target through meals, with a shake as a top-up rather than a replacement for real food.
If dairy doesn't sit well, or you're avoiding it for any reason, Pea Protein Isolate and our broader Plant Protein Powder are complete, dairy-free options that cover the same basic protein need. Egg White Protein Powder is another option if you tolerate eggs but not dairy. None of these are a substitute for a varied diet, they're simply a way to close a gap on days when meals alone aren't getting you there.
Where we'd urge genuine caution is anything beyond straightforward protein. Creatine, pre-workout products, and most performance-focused supplements haven't been studied enough during pregnancy to make a confident call either way, and a caffeinated pre-workout specifically should be avoided given standard guidance to keep caffeine intake low throughout pregnancy. If you're wondering whether something beyond a basic protein shake is appropriate for you, that's a direct question for your doctor rather than something to decide from general information like this.
The simplest, safest approach through all three trimesters is treating protein as something that comes primarily from food, with a plain protein shake as a convenient top-up on harder days, and treating everything else in the supplement aisle as something to check with your doctor first rather than something to add on autopilot.