Ttc number 2 and feeling discouraged

This may sound silly. I am new here, by the way. Just started using the glow app. A little back story. June 2013 we forgot to use protection during my fertile time and ended up pregnant. I had a missed miscarriage at 10 weeks (end of August). We waited until October to try again. Got pregnant in November and found out early December.

Now, my sweet baby boy is almost 14 months and we have decided to TTC. Haven't been using protection since July and I have been temping since August. I got my first postpartum period in June while still breastfeeding. We weaned last month. I think breastfeeding made my cycles crazy long (first was 42 days, second was 39, this last one was 36). I am taking a fertility vitamins and starting clearblue digital opks. This month. I have been so discouraged because I've only had two chances to conceive since July and we missed them. I know I can't expect it to happen as fast as my previous pregnancies. I would like to think my body is adjusting from weaning and all the postpartum hormonal changes.

Any advice for conceiving number two? I know a lot of women who got pregnant by accident before their first baby was one. Seems like that would have been easier... :/