Verb conjugation of "säugen" in German

Now I just got scared! Have I missed my own son's birthday? Luckily it is on the 19.08, exactly in a month. Man, you confused me now. Anyway, we had a great time in the mountains and the snow was great.
My correction were added and highlighted with yellow markers and attached to this email. Tell me now if you have any questions about grammar rules, since I was a teacher 10 years ago.
I am back in Switzerland, and the weather makes me crazy. Shall I write you on Vocabulix or to your regular email address? I have been working 20 years as an employee for a German company.