Week 4: Dad's Guide
First Trimester • Baby is the size of a a sim card chip
Week 4 of 4010% there
👶 Baby Update
Size: A SIM card chip
The embryo has implanted and is now producing HCG — the hormone pregnancy tests detect. The placenta is starting to form. Baby is developing three cell layers that will become all organs and body parts.
💕 What She's Going Through
Missed period (the first real sign). Possibly sore breasts, fatigue, mild nausea, or frequent urination. Many women feel totally normal.
💪 What You Should Do This Week
- ✓If she missed her period, suggest a home pregnancy test (first morning urine is most accurate)
- ✓If positive, celebrate together — then keep it between you two until she's ready to share
- ✓Start researching OB-GYNs or midwives in your network
🚫 Don't Say This
“Should we tell everyone?!”
Let her decide the timeline. Most couples wait until 12 weeks due to first-trimester miscarriage risk.
🛒 Gear Tip
Buy a few extra pregnancy tests. She'll want to take more than one. Trust us.
🧠 Dad Hack
Write down the date of her last period — every doctor will ask for it. It's how they calculate the due date.