I think we are in very similar boats!! This is considered my 2nd cycle after my miscarriage. AF started for me on the 31st and I think I Od on the 15th. I am not exactly sure when AF will show either since last cycle was shorter than usual for me! I am considering myself 10 DPO today and I am planning to test on CD 12.
If you O'd on 4/13 than that would make you 11 DPO. Only you can decide when to test, but if it were me I would probably test when I was 14 DPO. Of course i am a POAS addict and I have already tested a couple times and gotten BFN but with my other pregnancies I didn't get a BFP until 12 DPO... so I don't expect a positive yet!
And ...I don't have ANY symptoms yet

but I guess we will both see in a few days!! Maybe we will get lucky this cycle!!
Good luck