Late ovulation after chemical pregnancy

Carly

I had a miscarriage and d&c in May me and DH only started ttc again last cycle, I got a positive before period was due I thought it was too good to be true, turns out it was as after 3 days of positive tests the next day they were totally negative I then started bleeding a few days later (1st Nov) started doing opks around cd10 and was getting a pretty strong line but it never progressed, I usually get ovulation pains and also didn’t get those. I’m now on cd28 and I have the worst ovulation pains, also did a CB digital opk and it confirmed LH surge what the hell!! Is this normal after being pregnant for literally days?? Usual cycle is average 29 days. DH been asleep for hours, looks like that’s another month of TTC down the pan. How frustrating!!!!