If the cheap ones are working for you, keep using those. The digital ones are actually less sensitive. Only advantage of digital is if you're driving yourself crazy thinking "is this positive?" The non digital ones also have the advantage of getting darker, then lighter, so you might actually know a few more of your fertile days with the cheap strips.

Agreed you lp is fine. Egg needs an average of nine days to implant, so your lp is giving you plenty if time.

I use Wondfos that I get on amazon.

Your LP is fine.

The cheap ones you can order in bulk from amazon. They work just as well. In fact, because I don't feel the need to be stingy with them, they've been a lot more accurate since I use them 4-5 times/day.

I don't think that's an unusually short LP. I found mine got a bit shorter the older I got (like, in my late 30s)

Is there a big advantage to using the clear blue digital OPK (the one with the smilies) vs. the regular clear blue opk (just shows two lines when you're ovulating). I used the two lines ones the two last months (alas, first month DH had a last minute business trip, so we didn't get to try and last month we did, but bfn) and got two clear, dark lines for two days, preceded by 2 days of fainter ones. So, it seems like it's giving me results that aren't hard to interpret. But I was wondering if there was any accuracy advantage in the digital one? My cycle seems a bit odd - judging from the OPKs, I'm ovulating on about day 15 and then have my period 12 days after that, which seems a bit short for a luteal phase.