You should get some LH tests strips to track your LH surges, it's totally possible to be ovulating without any menses. I like the One+Step LH strips at the 20mIU level, they work really well for me. I am also BFing, but my cycle's returned at a year pp. But if you get the LH strips you can figure out if you are ovulating (maybe try temping too to confirm O) then you would be able to time BDing right. You don't have to have you AF back to get pregnant. Good Luck to you!!
oh, I know very well that you ovulate before AF comes along; I conceived my second without ever getting AF after my first was born! Which is also why I'm TTC now, regardless of having no AF yet to go by.
Temping isn't practical for me, as my youngest feeds through the night, and a lot in the early hours so I don't get a solid sleep that is best for temping. Plus I can't be bothered dealing with temping and two kids. On the same vein I'm not really interested in using OPKs, largely as it could in reality be months before I O yet and I'm sooooooo not gonna waste that much on sticks!! Lol.
I am tracking my cervix, my mucus and other symptoms and enjoying BD in the mean time. I'd love to get pregnant right away again, without getting AF, but at the same time I'd be quite happy if AF turned up cos then I would have more to go by! But either way, as frustrating as it is at times being in the dark, I'm not too worried. I've had 5.5 years straight through without AF now so I won't begrudge her return if she does!!