But now that I’m almost finished with the yolk, I realize that the gauge is 4 stitches/inch smaller then I need (and smaller than the swatch).
I’m wondering if I can just keep doing the increase rows until I get to the correct size? And then decrease those extra stitches to get the correct stitch count for the pattern?
Or should I just start over with a different needle size?
Did you block the swatch? The difference is probably just coming from working with the yarn, pulling, tugging, etc. – I always trust the swatch! But if you’re saying that your swatch isn’t the right size (measured incorrectly?), I would re-swatch with larger needles.
There’s so much more work to do on this hoodie including the stranded pattern area that it’s worth getting it right. Four more increase rows (maybe 8 more rows total?) will increase the depth of the armhole. Is that going to be ok?
You’ll also have either extra sts to account for in the stranded area or, if you decrease, a smaller sweater across the chest and body.