Trying for #2 but still BFing and have irregular periods

Kristen
Hi! I was so excited to see my period 10 months postpartum since I'm still BFing my 1st baby.  I want them close together and was afraid I'd have to wean her to get my period. but my cycles have been 40 days twice now. My usual is 27 or so. I did not do OPKs yet so I have no idea when I ovulated or if I even did? If a cycle is long I assume ovulation is late rather than a long luteal phase. Is it possible I'm not ovulating yet?
Did it take you a while to get regular periods after your first or after breastfeeding? I just don't know what to expect. I'm going to start OPKs next month. Glow helped me conceive Della after 9 months of tryouts by so I know this works! :)