“婚检”不能说“考上了”，可以说“通过了”。

"And even if something comes up,I'll be on your side.We'll deal with it together."

Is this suggested by 强吧....kinda like...we'll stand firm together no matter what ?

Please check your PMs. But let's take a look at the sentence you mentioned:

提前預防總比到時候出了事強吧

In this case, 强 means "better, stronger." A more idiomatic translation for this phrase would be "an ounce of prevention is worth a pound of cure." Or as I always like to say "a pound of prevention is worth sixteen pounds of cure" ;-)

You didn't ask, but I'd like to mention that I translated the line 我們談戀愛都七年了 as "We've been together for seven years." Here, the 都 is adding emphasis. Some people may be wondering where "being together" comes in. Although 谈恋爱 can mean "to date," "to court," here the best translation is "to be a couple." Hence the translation.

..being a westerner,I think of a hobby horse as being a toy for a very young child [younger than school age...say a 3 year old].However I found this photo which shows maybe it's not just kids in China who go around on 竹马:

So I'm wondering about the implications here.A says they grew up together ...从小.What is the age implication here? Once again I would have thought it meant from earlier childhood than the highschool that was then mentioned.They have been courting for 7 years.So would it be correct to interpret this dialogue as suggesting they grew up from early childhood together but then years later became romantically involved somewhere in their teens [7 years ago]?

你们要答应我，以后这个课程是系列。你们应该接下来。。。you can't leave us hanging like that...we have to find out if there is something behind this 难言之隐 and we need to find out what tests are going to be ordered and the 结果。Once again the acting in this lesson was superb.They both deserve a big pat on the back.Great expression.

I take it that 缺胳膊少腿的 refers to more than just missing arms and legs?..a broader term?

Jenny's mention of politically correct terms gave me an idea I'd love to see a lesson on;politically correct language.It has really changed language in the west and I think it'd be very interesting to explore that in Chinese.