Ovulation tests.LH surge detected 7 days in a row. Is this accurate/normal?

My husband and I have been ttc for 1.5 yrs. In January I had a laparoscopy which reveled I had severe adhesional endometriosis. It was all removed and we were told if not preg within 6 months to come back and explore other options.
In Feb I discovered inwas pregnant and we were thrilled. Had a scan at 7 weeks heartbeat all great, then 3 days later I began to miscarry.
I have now this month begun to again track my ovulation with home test kits.
In the past my ovulation period would last 4/5 days...
This month today has come up that I now am still having LH surge and this is the 7th day in a row.
Is this accurate or normal? Im a little perplexed
Soph

Well whatever was going on it worked. Found out a week ago im pregnant :)

I was just gonna say my opk did that when I was pregnant

Silly me I shouldve guessed it!
I must of conceived at the begining of ovulation and the tests were picking it up a week later.
Preettty cool :) :)

Congratulations fingers x for a happy and healthy 9months :)

Thankyou :)