Aw, that's tough mama, sciatica during pregnancy is actually pretty common, a lot of my mum friends dealt with it too, especially as baby grows and puts pressure sa nerves. The good news is it usually gets better after delivery, pero definitely tell your doctor about it sa next checkup so they can confirm and maybe suggest safe stretches or positions na makakatulong. In the meantime, try to avoid sitting too long, sleep on your left side, at some of us swear by pregnancy pillows para sa pelvic support, makes a real difference! Hang in there, this phase will pass.