As the planets move into Cancer, emotional tensions/empathy rise and fall (even though Jupiter's left Cancer for Leo).
Venus enters Cancer on the 18th, and Mercury in Cancer trines Neptune Rx in Pisces (at 7 degrees, exact on the 19th). This suggests a safe outlet for feelings. Venus in Cancer ups the love/nurturing/needy quotient and Mercury in Cancer wants to talk about it. The trine to Neptune dissolves fears about saying too much (Neptune expands as it loosens boundaries) while making words/thoughts extremely empathetic.
But the Sun (at 26 degrees Cancer) will be squaring Mars (action) in Libra (also exact on the 19th). Mars square Sun is edgy-assertive, and the mix of Cancer/Libra suggests emotional displays driven by social actions. But the square is tense, so there's something a tad "off" about the whole deal. Maybe the vibe is aggressively needy. Or you step over some unwritten social boundary (Libra is always concerned with what's appropriate). Or you charge in with the best intentions but end up invading someone's privacy (Cancer).
This is not a huge deal, but if you have something important scheduled from the 17th to the 19th, know that actions are likely to ruffle some feathers, while words will smooth things over. You may have to act, and that's fine. Just think it through, discuss, listen.
If you have natal/progressed planets or angles from 6-8 degrees of the Water signs, you'll feel the trine. 25 -28 degrees of the Cardinal signs will feel the square. If you have something in one degree range but not the other, it's still helpful to pay attention to both influences. All of these energies can be felt from today (the 17th) to the 19th.