Welcome to icliniq.com.
I read your query and can understand your concern.
The risk of pregnancy is really low immediately after and before the period. So it is not the way you have understood it to be. But moreover, you need to take a precaution for that in the form of condoms.
Also, at this stage, if you are planning for the baby later, as per your comfort, you need to decide upon a reliable birth control method like a patch, pills, condom, or IUD (intrauterine device).
Further, depending upon how long the honeymoon is, if you wish to delay periods for some time, say for some days to a week, I would suggest the medicines accordingly. But please take the medications with a physician's consent.
If you are planning unprotected intercourse, that should be avoided as the chances of pregnancy are there, but less.
I hope this helps.
Thank you and take care.