water question

I know this may make me sound stupid but I'm going to ask anyways please don't be negative (FTM) With being pregnant I know my water intake should increase I try to drink a lot of water but I only seem to be able to drink like 7 oz at the most. If I add lemon juice to it would that be okay? Any other suggestions are more than welcome I just know I'll drink lemon water like crazy. Does it really matter if its plain water or not? I'd ask my Dr but waiting 2 hours on hold just irritates the shit outta me.