Hey mamsh! Yellowish discharge during pregnancy is pretty common actually, pero since you're only 5 weeks in and any changes during early pregnancy can be tricky, I'd really suggest checking with your OB just to be safe lang, better to confirm everything is okay talaga. A few of my mum friends had similar concerns and their doctors said it was normal hormonal stuff, pero every pregnancy is different kaya best to get it checked para sa peace of mind mo. Wishing you a healthy pregnancy!