An observation after searching fertility charts of pg with multiples...
So I was on fertility friend and was filling out search criteria using charts similar to mine. No meds, using OPK's, etc.
Mainly I wanted to see if a lot of people got 3+ days worth of +OPK's like I've been getting. I noticed a lot who get a couple days worth of + Opk's also showed pg with multiples (I searched pg with multiples using NO meds). I guess it makes sense since they are possibly releasing more than one egg so their surge could last longer.
I admit it made me a little excited that maybe since I get 3 day surges I too could be releasing more than 1 egg? (I've always wanted twins!) Although more than likely my body is just taking a bit to surge and may still be adjusting since I only stopped bf'ing less than 2 months ago. The only other time I used opk's was when ttc #1 and I would only get 1 + day of opk's. So who knows?!?