Spend the time that you would have spent on a fraternity with your baby and girlfriend (making an assumption that she is your girlfriend). You will never get that time back. If you and the mother are together, focus on making it a lasting, permanent relationship--it will make your life less stressful and chaotic if you can stay together.
Sorry that you were offended by others correcting your grammar, but remember your audience when you are addressing anyone. You came here to ask advice, why wouldn't you want to present yourself in the best way possible? We're not your best friends and this isn't text messaging. A stronger level of formality is appropriate.
There's my motherly advice for the day!