A new study by Match.com found the number of days into a relationship when the average couple hits 10 major milestones.

1. The first kiss happens after one day. And sex happens within 31 days.

2. Saying "I love you" happens after 144 days (just under five months).

3. Updating your relationship status on Facebook happens after 157 days (just over five months).

4. You meet their parents after 170 days (about six months).

5. Your first argument happens around 170 days.

6. The first overnight trip happens after about seven months.

7. The first vacation together happens after 10 months.

8. You get engaged after  just over two years.

9. You get married a few months into your third year.

10. And you have your first child at right around four years.

Read more at Daily Mail.

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