I've been using them for the first time this cycle and am now on day 13 of a usually 28/29 day cycle.
Yesterday there was a very faint 'surge' line and today it is stronger but still not quite as strong as the other line.
I am wondering if we should go for it tonight or best to wait until tomorrow night, (or until the surge line is stronger as it says on the packet?)
I'm never sure if it's true what people say about sperm being weaker if you do it the second/third day and don't leave a gap, or is that just an old wives tale? In other words, if we do it tonight will we be making it weaker for tomorrow/the next day when I am probably at my most fertile?
Any advice appreciated.