Great granddaddy shows relay for life

My son and his wife had a long-awaited first baby boy at the end of January.

During pregnancy and even at delivery as well, she was under a lot of strain, which worried us without a break./ really worried us.

Some alternate expression

Nonetheless/ Nevetheless, the baby came cheerfully into this world without an incident and with much cheerfulness/ joy/ radiance.

I feel maybe this way of uaing cheerfulness is better? Some alternative expressions too.

I can't help appreciating her for having my son become a father as she got through abut admire her having a baby with my son; giving birth can be life-threatening delivery.

Some grammar changes. Expression changes too. If youre trying to say she was willing to go through a life threatwning delivery to have a baby, then maybe this way is better.

Although his death was way toovery unpredictable, I regret that I was unable to get him to meet his great-grandson.

I decided to accept what had happened like this:; behind the safe delivery, there was my father.

He undertook the various hardships that were about to go for my son's wife and the baby.

Thinking that heI started to become teary-eyed thinking about how he had sacrificed himself to show us relay for life unto the next generation, I found myself teary-eyed.

A little change in expression. "I found myself teary eyed" gives the impression you are like watching yourself become teary eyed. Which can be ok, but i think this is slighty more natural?

After having my share of ups and downs, now I spend every day only praying for my grandson's healthy growth with a memory of my father.

During the pregnancy and at delivery as well, she was under strain, which worricaused us without a break.to worry relentlessly.

Noneevertheless, the baby came cheerfully into this world without an incident.

I can't help but appreciating here my son’s wife for havmaking my son become a father as. I appreciate that she got through a life-threatening delivery.

Ten days lafter that, however, my father passed away.

Although his death was way too unpredictable, I regret that I was unable to getintroduce him to meet his great-grandson.

I decided to accept what happened like this: beh. I believe that underlyindg the safe delivery, there was my fathermy father influenced the situation.

He undertook the various hardships that were about to gonecessary for my son's wife and the baby.

Thinking that he sacrificed himself to show us relay for life tofor the next generation, I found myself teary-eyed.

After having my share of ups and downs, now I spend every day only praying for my grandson's healthy growth with ain memory of my father.

The young couple, are dedicating themself to protecting a tiny life, looks radiant.

During pregnancy and at delivery as well, she was under strain, which had us worried us without a breakthe entire time.

Slighty more natural.

I can't help appreciating her for having my son become a father as she gowent through a life-threatening delivery.

Although his death was way too unpredictable, I regret that I was unable to get him to meet his great-grandson.

unpredictable does not need this modifier in this case.

I decided to accept what happened like this: behind: after the safe delivery, there was my fathermy father passed on.

He undertook the various hardships that were about to gocome for my son's wife and the baby.

Thinking that he sacrificed himself to show us relay for life to the next generation, I found myself teary-eyed.

This is a difficult one to correct. I understand the meaning you are trying to convey, however "relay for life" is the name of a sporting event, not an actual english phrase.
Maybe "Knowing that he waited to pass on after he was certain of the next generation, I found myself teary-eyed." Would be more appropriate to convey the same sentiment?

After having my share of ups and downs, I now I spend every day only praying for my grandson's healthy growth with athe memory of my father.