Differences in Past Tense: 'used to have' vs. 'had' (non-native speaker)

I don't understand the difference between these sentences. Is there a special usage for each?

-I used to have three cats

I used to have three cats

-I had three cats and

I had three cats

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asked Sep 12, 2013 at 12:29

Differences in Past Tense (non-native speaker)

I don't understand the difference between these sentences. Is there a special usage for each?

-I used to have three cats

-I had three cats