some flower drop is common - sometimes normal, sometimes it can be a sign of something bad...if the rest of the plant looks fine & theres still some flowers you should be good.
Rest of the plant looks healthy as can be and I have probably a good 15-20 more budding out flowers. Just dont want to do anything wrong on this plant.
Sounds okay, as bental said some flower drop is absolutely normal. You can't expect every single bud to become a pod (sadly!). As long as it doesn't drop them all and the plant itself looks fine - don't worry!